Revised Minimum Equipment List (MEL) LOA D095 and LOA D195 Templates Per 14 CFR Parts 91, 133, 137, and 141

U.S. DEPARTMENT OF TRANSPORTATION N 8900.748

NOTICE

FEDERAL AVIATION ADMINISTRATION Effective Date: 8/9/25 National Policy Cancellation Date: 8/9/26 SUBJ: Revised Minimum Equipment List (MEL) LOA D095 and LOA D195 Templates Per 14 CFR Parts 91, 133, 137, and 141 1. Purpose of This Notice. This notice announces a nonmandatory revision to Letter of Authorization (LOA) D095, MMEL and a Procedures Document Used as an MEL, and LOA D195, Minimum Equipment List (MEL). The template revisions apply to Title 14 of the Code of Federal Regulations (14 CFR) part 91 operators and 14 CFR parts 133, 137, and 141 certificate holders.

2. Audience. The primary audience for this notice is the Flight Standards (FS) Safety Assurance offices’ aviation safety inspectors (ASI) assigned to provide oversight of 14 CFR part 91 operators and 14 CFR parts 133, 137, and 141 certificate holders. The secondary audience includes the Safety Standards and Foundational Business offices.

3. Where You Can Find This Notice. You can find this notice on the MyFAA employee website at https://employees.faa.gov/tools_resources/orders_notices and the Dynamic Regulatory System (DRS) at https://drs.faa.gov . Operators and the public can find this notice on the Federal Aviation Administration’s (FAA) website at https://www.faa.gov/regulations_policies/orders_no tices and DRS.

4. Background.

a. To reduce unnecessary administrative work, Table 2, Responsible Person, has been removed from 14 CFR part 91 LOAs D095 and D195, as this information is addressed in the operator’s part 91 LOA A001, Issuance and Applicability, revision 02c or later.

b. To reduce unnecessary administrative work, the “Remarks” column has been removed from LOA D195, Table 1, Authorized Aircraft.

c. To emphasize the requirement for a procedures document, the LOA D095 title has been changed from “MMEL Used as an MEL” to “MMEL and a Procedures Document Used as an MEL.” Distribution: Electronic Only Initiated By: AFS-800

8/9/25 N 8900.748 5. Guidance.

a. Appendices. Appendices to this notice show the revised templates. This notice contains the following: Appendix Authorizing Document Paragraph Applicable to Part A LOA D095 91 B LOA D095 133 C LOA D095 137 D LOA D095 141 E LOA D195 91 F LOA D195 133 G LOA D195 137 H LOA D195 141 b. FAA Order 8900.1, Flight Standards Information Management System. Volume 4, Chapter 4, Section 2, MEL Requirements for 14 CFR Part 91 Operators and 14 CFR Parts 133, 137, and 141 Certificate Holders.

6. Action.

a. Nonmandatory Revision. This is a nonmandatory revision to 14 CFR parts 91, 133, 137, and 141 LOA D095 and D195 templates.

b. Verification of 14 CFR Part 91 LOA A001 Revision and Responsible Person. When either 14 CFR part 91 LOA D095 or part 91 LOA D195 is issued or reissued, ASIs must: (1) Ensure the operator has been issued 14 CFR part 91 LOA A001 revision 02c or later, (2) Verify that the Responsible Person named in Table 1 of LOA A001 is the same as the Responsible Person named in the operator’s MEL request letter, and (3) Update and reissue LOA A001 as required.

7. Disposition. The information in this notice has been incorporated into Order 8900.1, Volume 4, Chapter 4, Section 2. Direct questions or comments concerning the information in this notice to the General Aviation and Commercial Division (AFS-800) at 202-267-1100.

Robert Reckert for Lawrence Fields Executive Director, Flight Standards Service

8/9/25 N 8900.748 Appendix A Appendix A. Sample LOA D095, MMEL and a Procedures Document Used as an MEL: 14 CFR Part 91 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the operator, [Operator Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL) and the operator’s procedures document that meets the detailed criteria stated in this LOA, as a minimum equipment list (MEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the M/M/S-specific MMEL, the operator’s procedures document, and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the operator.

3. The M/M/S-specific MMEL, the operator’s procedures document, and this LOA together are an approved MEL and constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The operator is authorized to use an approved MEL, as defined in subparagraph 3 above, for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1 – Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The operator’s procedures document must, per § 91.213(a)(5), contain the following: a. The operator’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the operator’s aircraft for which the operator desires MEL relief.

(1) The operator may use (M) and (O) procedures as published by the manufacturer, or use operator-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

A-1 8/9/25 N 8900.748 Appendix A c. A list of all M/M/S-specific MMEL items that contain the statement “as required by 14 CFR,” based on the items installed on the operator’s aircraft for which the operator desires MEL relief. The operator’s procedures document must: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

6. To use the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office: a. The applicable document in subparagraph 6 above must be included as an attachment to the MMEL, and b. The operator’s procedures document must address applicable (M) and (O) provisos and “as required by 14 CFR” procedures that are contained in the document, as described in subparagraphs 5b and 5c above.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the operator must obtain a copy of the revision, carry the latest MMEL revision on board the aircraft, and incorporate applicable changes in its procedures document. The operator’s procedures document must address applicable (M) and (O) procedures and applicable “as required by 14 CFR” procedures.

9. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the MMEL, or a document used for relief as specified in subparagraph 6 above, must be operational for flight.

10. This LOA is issued to, and valid only for, the operator named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid unless: a. The operator fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); b. It is voluntarily surrendered by the operator for cancellation; A-2 8/9/25 N 8900.748 Appendix A c. The operator ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

11. Responsible Person. The Responsible Person for this authorization is listed in Table 1 of LOA A001, Issuance and Applicability (revision 02c or later).

A-3

8/9/25 N 8900.748 Appendix B Appendix B. Sample LOA D095, MMEL and a Procedures Document Used as an MEL: 14 CFR Part 133 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the certificate holder, [Certificate Holder Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL) and the certificate holder’s procedures document that meets the detailed criteria stated in this LOA, as a minimum equipment list (MEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the M/M/S-specific MMEL, the certificate holder’s procedures document, and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the certificate holder.

3. The M/M/S-specific MMEL, the certificate holder’s procedures document, and this LOA together are an approved MEL and constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The certificate holder is authorized to use an approved MEL, as defined in subparagraph 3 above, for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1 - Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The certificate holder’s procedures document must, per § 91.213(a)(5), contain the following: a. The certificate holder’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

(1) The certificate holder may use (M) and (O) procedures as published by the manufacturer, or use certificate holder-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

B-1 8/9/25 N 8900.748 Appendix B c. A list of all M/M/S-specific MMEL items that contain the statement “as required by 14 CFR,” based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief. The certificate holder’s procedures document must: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

6. To use the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office: a. The applicable document in subparagraph 6 above must be included as an attachment to the MMEL, and b. The certificate holder’s procedures document must address applicable (M) and (O) provisos and “as required by 14 CFR” procedures that are contained in the document, as described in subparagraphs 5b and 5c above.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the certificate holder must obtain a copy of the revision, carry the latest MMEL revision on board the aircraft, and incorporate applicable changes in its procedures document. The certificate holder’s procedures document must address applicable (M) and (O) procedures and applicable “as required by 14 CFR” procedures.

9. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the MMEL, or a document used for relief as specified in subparagraph 6 above, must be operational for flight.

10. This LOA is issued to, and valid only for, the certificate holder named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid as long as the certificate holder’s Rotorcraft External-Load Operator Certificate remains in effect, unless: a. The certificate holder fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); B-2 8/9/25 N 8900.748 Appendix B b. It is voluntarily surrendered by the certificate holder for cancellation; c. The certificate holder ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

B-3

8/9/25 N 8900.748 Appendix C Appendix C. Sample LOA D095, MMEL and a Procedures Document Used as an MEL: 14 CFR Part 137 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the certificate holder, [Certificate Holder Name], to operate the aircraft listed below in Table 1, Authorized Aircraft , using the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL) and the certificate holder’s procedures document that meets the detailed criteria stated in this LOA, as a minimum equipment list (MMEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the M/M/S-specific MMEL, the certificate holder’s procedures document, and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the certificate holder.

3. The M/M/S-specific MMEL, the certificate holder’s procedures document, and this LOA together are an approved MEL and constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The certificate holder is authorized to use an approved MEL, as defined in subparagraph 3 above, for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1 – Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The certificate holder’s procedures document must, per § 91.213(a)(5), contain the following: a. The certificate holder’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

(1) The certificate holder may use (M) and (O) procedures as published by the manufacturer, or use certificate holder-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

C-1 8/9/25 N 8900.748 Appendix C c. A list of all M/M/S-specific MMEL items that contain the statement “as required by 14 CFR,” based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief. The certificate holder’s procedures document must: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

6. To use the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office: a. The applicable document in subparagraph 6 above must be included as an attachment to the MMEL, and b. The certificate holder’s procedures document must address applicable (M) and (O) provisos and “as required by 14 CFR” procedures that are contained in the document, as described in subparagraphs 5b and 5c above.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the certificate holder must obtain a copy of the revision, carry the latest MMEL revision on board the aircraft, and incorporate applicable changes in its procedures document. The certificate holder’s procedures document must address applicable (M) and (O) procedures and applicable “as required by 14 CFR” procedures.

9. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the MMEL, or a document used for relief as specified in subparagraph 6 above, must be operational for flight.

10. This LOA is issued to, and valid only for, the certificate holder named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid as long as the certificate holder’s Agricultural Aircraft Operator Certificate remains in effect, unless: a. The certificate holder fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); C-2 8/9/25 N 8900.748 Appendix C b. It is voluntarily surrendered by the certificate holder for cancellation; c. The certificate holder ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

C-3

8/9/25 N 8900.748 Appendix D Appendix D. Sample LOA D095, MMEL and a Procedures Document Used as an MEL: 14 CFR Part 141 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the certificate holder, [Certificate Holder Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL) and the certificate holder’s procedures document that meets the detailed criteria stated in this LOA, as a minimum equipment list (MEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the M/M/S-specific MMEL, the certificate holder’s procedures document, and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the certificate holder.

3. The M/M/S-specific MMEL, the certificate holder’s procedures document, and this LOA together are an approved MEL and constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The certificate holder is authorized to use an approved MEL, as defined in subparagraph 3 above, for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1 - Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The certificate holder’s procedures document must, per § 91.213(a)(5), contain the following: a. The certificate holder’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

(1) The certificate holder may use (M) and (O) procedures as published by the manufacturer, or use certificate holder-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

D-1 8/9/25 N 8900.748 Appendix D c. A list of all M/M/S-specific MMEL items that contain the statement “as required by 14 CFR,” based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief. The certificate holder’s procedures document must: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

6. To use the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office: a. The applicable document in subparagraph 6 above must be included as an attachment to the MMEL, and b. The certificate holder’s procedures document must address applicable (M) and (O) provisos and “as required by 14 CFR” procedures that are contained in the document, as described in subparagraphs 5b and 5c above.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the certificate holder must obtain a copy of the revision, carry the latest MMEL revision on board the aircraft, and incorporate applicable changes in its procedures document. The certificate holder’s procedures document must address applicable (M) and (O) procedures and applicable “as required by 14 CFR” procedures.

9. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the MMEL, or a document used for relief as specified in subparagraph 6 above, must be operational for flight.

10. This LOA is issued to, and valid only for, the certificate holder named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid as long as the certificate holder’s pilot school certificate, or provisional pilot school certificate, remains in effect, unless: a. The certificate holder fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); D-2 8/9/25 N 8900.748 Appendix D b. It is voluntarily surrendered by the certificate holder for cancellation; c. The certificate holder ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

D-3

8/9/25 N 8900.748 Appendix E Appendix E. Sample LOA D195, Minimum Equipment List: 14 CFR Part 91 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the operator, [Operator Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using an operator-developed minimum equipment list (MEL).

The operator-developed MEL must be based on the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the operator-developed MEL and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the operator.

3. The approved operator-developed MEL and this LOA together constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The operator named in subparagraph 1 above is authorized to use an operator-developed MEL for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met: Table 1 – Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The operator-developed MEL must never be less restrictive than the M/M/S-specific MMEL and must contain the following: a. The operator’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. A table of contents.

c. A log of revisions.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

f. Control page(s) or List of Effective Page(s) (LEP).

g. Air Transport Association of America (ATA) or Joint Aircraft System/Component (JASC) coded system sections.

h. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the operator’s aircraft for which the operator desires MEL relief.

E-1 8/9/25 N 8900.748 Appendix E (1) The operator may use (M) and (O) procedures as published by the manufacturer, or use operator-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

i. The operator-developed MEL must address all items listed in the M/M/S-specific MMEL that contain the statement “as required by 14 CFR,” based on the items installed on the operator’s aircraft for which the operator desires MEL relief. The MEL will: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

j. The operator-developed MEL must adequately and safely address all applicable provisos and notes contained in the MMEL “Remarks or Exceptions” column.

6. The operator-developed MEL may include the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office. These relief documents are considered an approved addendum to the MMEL, and therefore, the requirements of subparagraph 5 above also apply to these documents.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the operator must revise the operator-developed MEL and submit the revision to the responsible Flight Standards office. The revised operator-developed MEL is not valid until approved by the responsible Flight Standards office. If the revised content of the MMEL is not applicable, the operator must document the inapplicability of the mandatory MMEL revision by revising the MEL control page(s) or LEP to indicate the MEL is in compliance with the mandatory MMEL revision. The operator will retain the previous, FAA-signed MEL control page(s) or LEP within the MEL.

9. Except for MEL revisions solely for the purpose of documenting the inapplicability of a mandatory MMEL revision, or to incorporate MMEL PL-25 or MMEL PL-36 revisions, the operator must submit a copy of an MEL revision to the responsible Flight Standards office for approval. Reissuance of this LOA is not required when a mandatory MMEL revision is not applicable to the operator-developed MEL.

E-2 8/9/25 N 8900.748 Appendix E 10. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the operator-developed MEL, or a relief document as specified in subparagraph 6 above, must be operational for flight.

11. This LOA is issued to, and valid only for, the operator named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid unless: a. The operator fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); b. It is voluntarily surrendered by the operator for cancellation; c. The operator ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

12. Responsible Person. The Responsible Person for this authorization is listed in Table 1 of LOA A001, Issuance and Applicability (revision 02c or later).

E-3

8/9/25 N 8900.748 Appendix F Appendix F. Sample LOA D195, Minimum Equipment List: 14 CFR Part 133 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the certificate holder, [Certificate Holder Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using a certificate holder-developed minimum equipment list (MEL). The certificate holder-developed MEL must be based on the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the certificate holder-developed MEL and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the certificate holder.

3. The approved certificate holder-developed MEL and this LOA together constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The certificate holder named in subparagraph 1 above is authorized to use a certificate holder-developed MEL for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1 - Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The certificate holder-developed MEL must never be less restrictive than the M/M/S-specific MMEL and must contain the following: a. The certificate holder’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. A table of contents.

c. A log of revisions.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

f. Control page(s) or List of Effective Page(s) (LEP).

g. Air Transport Association of America (ATA) or Joint Aircraft System/Component (JASC) coded system sections.

h. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

F-1 8/9/25 N 8900.748 Appendix F (1) The certificate holder may use (M) and (O) procedures as published by the manufacturer, or use certificate holder-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

i. The certificate holder-developed MEL must address all items listed in the M/M/S-specific MMEL that contain the statement “as required by 14 CFR,” based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

The MEL will: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

j. The certificate holder-developed MEL must adequately and safely address all applicable provisos and notes contained in the MMEL “Remarks or Exceptions” column.

6. The certificate holder-developed MEL may include the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office. These relief documents are considered an approved addendum to the MMEL, and therefore, the requirements of subparagraph 5 above also apply to these documents.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the certificate holder must revise the certificate holder-developed MEL and submit the revision to the responsible Flight Standards office. The revised certificate holder-developed MEL is not valid until approved by the responsible Flight Standards office. If the revised content of the MMEL is not applicable, the certificate holder must document the inapplicability of the mandatory MMEL revision by revising the MEL control page(s) or LEP to indicate the MEL is in compliance with the mandatory MMEL revision. The certificate holder will retain the previous, FAA-signed MEL control page(s) or LEP within the MEL.

9. Except for MEL revisions solely for the purpose of documenting the inapplicability of a mandatory MMEL revision, or to incorporate MMEL PL-25 or MMEL PL-36 revisions, the certificate holder must submit a copy of an MEL revision to the responsible Flight Standards F-2 8/9/25 N 8900.748 Appendix F office for approval. Reissuance of this LOA is not required when a mandatory MMEL revision is not applicable to the certificate holder-developed MEL.

10. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the certificate holder-developed MEL, or a relief document as specified in subparagraph 6 above, must be operational for flight.

11. This LOA is issued to, and valid only for, the certificate holder named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid as long as the certificate holder’s Rotorcraft External-Load Operator Certificate remains in effect, unless: a. The certificate holder fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); b. It is voluntarily surrendered by the certificate holder for cancellation; c. The certificate holder ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

F-3

8/9/25 N 8900.748 Appendix G Appendix G. Sample LOA D195, Minimum Equipment List: 14 CFR Part 137 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the certificate holder, [Certificate Holder Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using a certificate holder-developed minimum equipment list (MEL). The certificate holder-developed MEL must be based on the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the certificate holder-developed MEL and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the certificate holder.

3. The approved certificate holder-developed MEL and this LOA together constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The certificate holder named in subparagraph 1 above is authorized to use a certificate holder-developed MEL for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1-Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The certificate holder-developed MEL must never be less restrictive than the M/M/S-specific MMEL and must contain the following: a. The certificate holder’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. A table of contents.

c. A log of revisions.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

f. Control page(s) or List of Effective Page(s) (LEP).

g. Air Transport Association of America (ATA) or Joint Aircraft System/Component (JASC) coded system sections.

h. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

G-1 8/9/25 N 8900.748 Appendix G (1) The certificate holder may use (M) and (O) procedures as published by the manufacturer, or use certificate holder-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

i. The certificate holder-developed MEL must address all items listed in the M/M/S-specific MMEL that contain the statement “as required by 14 CFR,” based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

The MEL will: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

j. The certificate holder-developed MEL must adequately and safely address all applicable provisos and notes contained in the MMEL “Remarks or Exceptions” column.

6. The certificate holder-developed MEL may include the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office. These relief documents are considered an approved addendum to the MMEL, and therefore, the requirements of subparagraph 5 above also apply to these documents.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the certificate holder must revise the certificate holder-developed MEL and submit the revision to the responsible Flight Standards office. The revised certificate holder-developed MEL is not valid until approved by the responsible Flight Standards office. If the revised content of the MMEL is not applicable, the certificate holder must document the inapplicability of the mandatory MMEL revision by revising the MEL control page(s) or LEP to indicate the MEL is in compliance with the mandatory MMEL revision. The certificate holder will retain the previous, FAA-signed MEL control page(s) or LEP within the MEL.

9. Except for MEL revisions solely for the purpose of documenting the inapplicability of a mandatory MMEL revision, or to incorporate MMEL PL-25 or MMEL PL-36 revisions, the certificate holder must submit a copy of an MEL revision to the responsible Flight Standards G-2 8/9/25 N 8900.748 Appendix G office for approval. Reissuance of this LOA is not required when a mandatory MMEL revision is not applicable to the certificate holder-developed MEL.

10. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the certificate holder-developed MEL, or a relief document as specified in subparagraph 6 above, must be operational for flight.

11. This LOA is issued to, and valid only for, the certificate holder named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid as long as the certificate holder’s Agricultural Aircraft Operator Certificate remains in effect, unless: a. The certificate holder fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); b. It is voluntarily surrendered by the certificate holder for cancellation; c. The certificate holder ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

G-3

8/9/25 N 8900.748 Appendix H Appendix H. Sample LOA D195, Minimum Equipment List: 14 CFR Part 141 1. This Letter of Authorization (LOA) is issued under the provisions of 14 CFR Part 91, § 91.213(a)(2) and authorizes the certificate holder, [Certificate Holder Name], to operate the aircraft listed below in Table 1, Authorized Aircraft, using a certificate holder-developed minimum equipment list (MEL). The certificate holder-developed MEL must be based on the aircraft make, model, and series (M/M/S)-specific Master Minimum Equipment List (MMEL).

2. Operations to which § 91.213(a) applies must be conducted in accordance with the certificate holder-developed MEL and this LOA; otherwise, relief under the provisions of § 91.213(a) is not available to the certificate holder.

3. The approved certificate holder-developed MEL and this LOA together constitute a Supplemental Type Certificate (STC) for the aircraft and must be available to the pilot in command (PIC) when operating under the provisions of § 91.213(a).

4. Authorized Aircraft. The certificate holder named in subparagraph 1 above is authorized to use a certificate holder-developed MEL for the aircraft listed in Table 1 below, provided the conditions and limitations of this LOA are met.

Table 1 - Authorized Aircraft Aircraft Serial Number Aircraft Registration Number Aircraft M/M/S 5. The certificate holder-developed MEL must never be less restrictive than the M/M/S-specific MMEL and must contain the following: a. The certificate holder’s name, aircraft serial and registration numbers (or “Fleet”), aircraft M/M/S, and the MMEL revision number on which the MEL is based.

b. A table of contents.

c. A log of revisions.

d. Applicable definitions, per current MMEL Policy Letter (PL)-25, MMEL/MEL Definitions.

e. A preamble, per current MMEL PL-36, 14 CFR Part 91 MEL Approval and Preamble.

f. Control page(s) or List of Effective Page(s) (LEP).

g. Air Transport Association of America (ATA) or Joint Aircraft System/Component (JASC) coded system sections.

h. Maintenance (M) and Operations (O) procedures that correspond with the (M) and (O) provisos listed in the M/M/S-specific MMEL, based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

H-1 8/9/25 N 8900.748 Appendix H (1) The certificate holder may use (M) and (O) procedures as published by the manufacturer, or use certificate holder-developed (M) and (O) procedures that have been developed using the guidance provided in the approved Aircraft Flight Manual (AFM), Aircraft Maintenance Manual (AMM), manufacturer’s recommendations, engineering specifications, or other appropriate sources.

(2) The (M) and (O) procedures must meet the intent of the (M) and (O) provisos in the MMEL and must never be less restrictive than the MMEL.

(3) Such (M) or (O) procedures must be accomplished in accordance with the provisions and requirements of 14 CFR Part 43, 91, or 145, as appropriate.

i. The certificate holder-developed MEL must address all items listed in the M/M/S-specific MMEL that contain the statement “as required by 14 CFR,” based on the items installed on the certificate holder’s aircraft for which the certificate holder desires MEL relief.

The MEL will: (1) List the specific 14 CFR part and section (e.g., 14 CFR Part 91, § 91.209) and carry the applicable 14 CFR section on board the aircraft; or (2) Specify the operational requirements or limitations to conduct the flight in accordance with the applicable 14 CFR part and section.

j. The certificate holder-developed MEL must adequately and safely address all applicable provisos and notes contained in the MMEL “Remarks or Exceptions” column.

6. The certificate holder-developed MEL may include the relief available in an MMEL PL with a current Global Change (GC) designation, in an STC Relief Approval Letter (e.g., Design Change Approval Letter), or in a design change evaluated and approved by the responsible Flight Standards office. These relief documents are considered an approved addendum to the MMEL, and therefore, the requirements of subparagraph 5 above also apply to these documents.

7. A means of recording discrepancies and corrective actions must be within the aircraft and available to the PIC when operating under the provisions of § 91.213(a).

8. When a mandatory revision to the M/M/S-specific MMEL is published by the Flight Operations Evaluation Board (FOEB), within 90 calendar days of the date of the MMEL revision, the certificate holder must revise the certificate holder-developed MEL and submit the revision to the responsible Flight Standards office. The revised certificate holder-developed MEL is not valid until approved by the responsible Flight Standards office. If the revised content of the MMEL is not applicable, the certificate holder must document the inapplicability of the mandatory MMEL revision by revising the MEL control page(s) or LEP to indicate the MEL is in compliance with the mandatory MMEL revision. The certificate holder will retain the previous, FAA-signed MEL control page(s) or LEP within the MEL.

9. Except for MEL revisions solely for the purpose of documenting the inapplicability of a mandatory MMEL revision, or to incorporate MMEL PL-25 or MMEL PL-36 revisions, the certificate holder must submit a copy of an MEL revision to the responsible Flight Standards H-2 8/9/25 N 8900.748 Appendix H office for approval. Reissuance of this LOA is not required when a mandatory MMEL revision is not applicable to the certificate holder-developed MEL.

10. Equipment installed on the aircraft authorized in Table 1 above (other than nonessential equipment and furnishings (NEF), such as galley equipment and passenger entertainment devices) that are not listed in the certificate holder-developed MEL, or a relief document as specified in subparagraph 6 above, must be operational for flight.

11. This LOA is issued to, and valid only for, the certificate holder named in subparagraph 1 above and the aircraft listed in Table 1 above. It is without an expiration date and will remain valid as long as the certificate holder’s pilot school certificate, or provisional pilot school certificate, remains in effect, unless: a. The certificate holder fails to comply with the requirements of this LOA when operating under the provisions of § 91.213(a); b. It is voluntarily surrendered by the certificate holder for cancellation; c. The certificate holder ceases to be the operator of the aircraft listed in the applicable authorization; d. It is canceled, rescinded, or revoked by the FAA; e. The aircraft listed on the authorization change(s) registration number(s); or f. The aircraft listed on the authorization is issued an experimental Special Airworthiness Certificate for research and development (R&D) or changes projects associated with an experimental Special Airworthiness Certificate for the purpose of R&D.

H-3