Airworthiness Directive Schedule Aeroplanes Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa)
Piper PA-25 Pawnee · Service Bulletins
Overview
This document is an Airworthiness Directive (AD) schedule for the Piper PA-25 series aircraft, specifically focusing on the PA-25 and PA-25-235 models manufactured under FAA Type Certificate No. 2A8 by Lavia Argentina S.A. The document outlines various modifications, inspections, and compliance requirements necessary to maintain airworthiness and safety standards for these aircraft. It serves as a critical reference for maintenance personnel and operators to ensure compliance with airworthiness directives issued by aviation authorities. The directives cover a range of components and systems, including landing gear, fuel systems, and structural modifications, with specific compliance timelines to ensure ongoing airworthiness.
- The document is an Airworthiness Directive schedule for the Piper PA-25 series.
- Modifications and inspections are required for various components to maintain airworthiness.
- Specific compliance times are outlined, such as 50 hours TIS for some modifications.
- The document includes directives effective from as early as 1961 to 2025.
- It covers multiple PA-25 variants including PA-25-150, PA-25-180, PA-25-235, and PA-25-260.
Document
Source
Originally published by www.aviation.govt.nz. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Service Bulletins
- Year
- 2025
- Pages
- 10
- File size
- 216 KB
- Publisher
- www.aviation.govt.nz
Common. Rarer than 24% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Piper PA-25 Pawnee.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Free — save the PIPER PA-25 Pawnee to your watchlist and track it in one place.
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In this document
Seat Travel Stop - Modification
Applicable to PA-25 aircraft with serial numbers 25-3 to 25-350, this modification requires compliance within the next 50 hours of time in service (TIS). The effective date of this directive is 31 August 1961.
Landing Gear Shock Strut - Replacement
This directive applies to PA-25-235 aircraft with serial numbers 25-2000 to 25-2519, excluding those with Airwork Mod AW403. Compliance is required within the next 25 hours TIS, effective from 31 July 1963.
Wing Fuel Tanks and Fuel System – Modification
Applicable to various PA-25 models used for agricultural operations, this modification requires compliance before the initial Certificate of Airworthiness (C of A) or within 12 months for already in-service aircraft. Effective dates vary by specific directive.
Rudder Pedal Return Spring - Modification
This modification applies to all PA-25-150, -180, and -235 aircraft, requiring compliance within the next 50 hours TIS or within 12 months, whichever comes first. Effective date is 31 January 1966.
Cabin Doors - Inspection
All PA-25-150, -235, and -260 aircraft must inspect cabin door hinge fittings for corrosion and cracks at intervals not exceeding 100 hours TIS. The effective date for this directive is 20 June 1980.
Safety notes
- Compliance with ADs is mandatory to ensure aircraft safety and airworthiness.
- Failure to comply with modification and inspection requirements may lead to safety risks.
Full document text
Issued 30 January 2025 Page 1 of 10 CAA of NZ Airworthiness Directive Schedule Aeroplanes Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) 30 January 2025 Notes 1. This AD schedule is applicable to PA-25 and PA-25-235 aircraft manufactured under FAA Type Certificate No. 2A8 held by Lavia Argentina S.A. (Laviasa). 2. The Argentina Administración Nacional de Aviación Civil (ANAC) is responsible for the issue of State of Design (SoD) Airworthiness Directives (ADs) for PA-25 and PA-25-235 aircraft. 3. The date above indicates the amendment date of this schedule. 4. New or amended ADs are shown with an asterisk * Contents DCA/PA-25/101 Seat Travel Stop - Modification ......................................................................................... 3 DCA/PA-25/102 Cancelled - Purpose fulfilled ............................................................................................. 3 DCA/PA-25/103 Landing Gear Shock Strut - Replacement......................................................................... 3 DCA/PA-25/104 Jury Struts - Modification................................................................................................... 3 DCA/PA-25/105A Wing Fuel Tanks and Fuel System – Modification ............................................................ 3 DCA/PA-25/106A Wing Fuel Tanks and Fuel System – Modification ............................................................ 3 DCA/PA-25/107A Wing Fuel Tanks and Fuel System – Modification ............................................................ 4 DCA/PA-25/108 Muffler Baffle Support - Modification ................................................................................. 4 DCA/PA-25/109 Fuselage Landing Gear Seal - Modification ...................................................................... 4 DCA/PA-25/110A Rudder Pedal Return Spring - Modification ....................................................................... 4 DCA/PA-25/111 Front Spar Wing Attachment - Modification....................................................................... 4 DCA/PA-25/112 Cancelled - DCA/PA-25/124 refers ................................................................................... 4 DCA/PA-25/113 Circuit Protectors - inspection ........................................................................................... 5 DCA/PA-25/114 Revised Elevator Control Link Assembly - Inspection ....................................................... 5 DCA/PA-25/115A Upper Longerons - Inspection ........................................................................................... 5 DCA/PA-25/116 Muffler Assembly - Inspection ........................................................................................... 5 DCA/PA-25/117 Wing Strut - Inspection ...................................................................................................... 5 DCA/PA-25/118 Operating Limitation Placard - Installation....................................................................... 6 DCA/PA-25/119 Fuselage Upper Longerons - Modification ........................................................................ 6 DCA/PA-25/120A Forward Wing Spars - Inspection ...................................................................................... 6 DCA/PA-25/121F Cancelled – FAA AD 99-01-05R1 refers ........................................................................... 6 DCA/PA-25/122 Cabin Doors - Inspection................................................................................................... 6 DCA/PA-25/123A Parking Brake Operation - Placard.................................................................................... 7 DCA/PA-25/124C Wing Spar Fuselage Attachment Assembly - Inspection................................................... 7 DCA/PA-25/125 Induction Air Filters – Replacement .................................................................................. 8 DCA/PA-25/126 Horizontal Stabilizer Supports – Inspection..................................................................... 8 The State of Design ADs listed below are available directly from the National Airworthiness Authority (NAA) websites. Links to NAA websites are available on the CAA website at Links to state of design airworthiness directives | aviation.govt.nz If additional NZ ADs need to be issued when an unsafe condition is found to exist in an aircraft or aeronautical product in NZ, they will be added to the list below. ....... 9 99-01-05R1 Cancelled – FAA AD 2015-08-04 refers ............................................................................ 9 2015-08-04 Wing Lift Struts and Forks – Inspection............................................................................. 9 74-18-02 Fuel Lines - Inspection .................................................................................................... 9 77-21-06 Fuselage Steel Tubing Cluster - Inspection .................................................................... 9 80-21-08 Forward Wing Spars - Inspection .................................................................................... 9 90-02-06 Forward Wing Spar Caps STC SA501SW - Inspection ................................................... 9 ANAC AD 2024-05-01 Cancelled - DCA/PA-25/127 refers ........................................................................... 9 * DCA/PA-25/127 Cancelled - Argentina ANAC AD 2024-05-01R1 refers ................................................. 10 Issued 30 January 2025 Page 2 of 10 CAA of NZ * ANAC AD 2024-05-01R1 Forward and Aft Wing Spars - Inspection ........................................................ 10 Aeroplanes Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 3 of 10 CAA of NZ DCA/PA-25/101 Seat Travel Stop - Modification Applicability: PA-25 aircraft, S/N 25-3 through to 25-350. Requirement: Piper SL 337.
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Compliance: Within the next 50 hours TIS. Effective Date: 31 August 1961 DCA/PA-25/102 Cancelled - Purpose fulfilled DCA/PA-25/103 Landing Gear Shock Strut - Replacement Applicability: PA-25-235 aircraft, S/N 25-2000 through to 25-2519 except those aircraft embodied with Airwork Mod AW403. Requirement: Piper SB 217. (FAA AD 63-17-05 refers) Compliance: Within the next 25 hours TIS. Effective Date: 31 July 1963 DCA/PA-25/104 Jury Struts - Modification Applicability: PA-25-150 aircraft, S/N 25-1 through to 25-399. Requirement: Piper SL 403. Compliance: Before issue of C of A. Effective Date: 30 September 1963 DCA/PA-25/105A Wing Fuel Tanks and Fuel System – Modification Applicability: PA-25-180 aircraft used for agricultural operations. Requirement: Embody Airwork (NZ) Mod AW392, or an approved equivalent modification. Compliance: Before initial C of A, or within the next 12 months for aircraft already in service. Effective Date: DCA/PA-25/105 - 31 August 1964 DCA/PA-25/105A - 25 February 2016 DCA/PA-25/106A Wing Fuel Tanks and Fuel System – Modification Applicability: PA-25-235 aircraft used for agricultural operations. Requirement: Embody Airwork (NZ) Mod AW397 and AW401, or approved equivalent modifications. Compliance: Before initial C of A, or within the next 12 months for aircraft already in service. Effective Date: DCA/PA-25/106 - 31 August 1964 DCA/PA-25/106A - 25 February 2016 Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 4 of 10 CAA of NZ DCA/PA-25/107A Wing Fuel Tanks and Fuel System – Modification Applicability: All PA-25-150 aircraft used for agricultural operations, except those aircraft embodied with Auckland Aero Club Mod AAC174. Requirement: Embody Airwork (NZ) Mod AW410, or an approved equivalent modification. Compliance: Before initial C of A, or within the next 12 months for aircraft already in service. Effective Date: DCA/PA-25/107 - 30 September 1964 DCA/PA-25/107A - 25 February 2016 DCA/PA-25/108 Muffler Baffle Support - Modification Applicability: All PA-25-235 aircraft, S/N prior to 25-2304. Requirement: Piper SL 399. Compliance: At initial C of A. Effective Date: 31 March 1963 DCA/PA-25/109 Fuselage Landing Gear Seal - Modification Applicability: All PA-25-235 aircraft as detailed in SB 221. Requirement: Piper SB 221. (FAA AD 64-24-05 refers) Compliance: By 31 December 1964 DCA/PA-25/110A Rudder Pedal Return Spring - Modification Applicability: All PA-25-150, -180 and -235 aircraft. Requirement: Airwork (NZ) Mod AW426, or an approved equivalent modification. Compliance: Within the next 50 hours TIS, or within the next 12 months whichever occurs sooner. Effective Date: DCA/PA-25/110 - 31 January 1966 DCA/PA-25/110A - 25 February 2016 DCA/PA-25/111 Front Spar Wing Attachment - Modification Applicability: PA-25 aircraft, S/N 25-1 through to 25-619, 25-622, 25-623, 25-625 and 25-626. Requirement: Piper SB 206. (FAA AD 62-02-06 refers) Compliance: Within the next 100 hours TIS, but not later than 31 December 1961. Effective Date: 31 August 1961 DCA/PA-25/112 Cancelled - DCA/PA-25/124 refers Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 5 of 10 CAA of NZ DCA/PA-25/113 Circuit Protectors - inspection Applicability: PA-25-235 aircraft with S/N as detailed in SB 215. Requirement: Piper SB 215. Compliance: Within the next 10 hours TIS. Effective Date: 31 August 1964 DCA/PA-25/114 Revised Elevator Control Link Assembly - Inspection Applicability: PA-25 aircraft, S/N 25-1 through to 25-731, and model PA-25-235 aircraft, S/N 25- 2000 through to 25-3565 not incorporating Piper kit 756960. Requirement: Piper SL 455. (FAA AD 65-15-05 refers) Compliance: At intervals not exceeding 250 hours TIS, until Piper kit 756960 is embodied. Effective Date: 31 January 1966 DCA/PA-25/115A Upper Longerons - Inspection Applicability: PA-25-235 aircraft, S/N 25-2000 through to 25-3731. Requirement: Piper SL 463A. Compliance: At 500 hours TIS and thereafter at intervals not exceeding 300 hours TIS until DCA/PA-25/119 is complied with. Effective Date: 31 May 1966 DCA/PA-25/116 Muffler Assembly - Inspection Applicability: PA-25-235 aircraft, S/N 25-2000 through to 25-4171. Requirement: Piper SB 241 or later approved revision. (FAA AD 67-14-07 refers) Compliance: At intervals not exceeding 50 hours TIS. Effective Date: 31 May 1969 DCA/PA-25/117 Wing Strut - Inspection Applicability: All PA-25-150, -180, -235 and -260 aircraft. Requirement: Using a 10 power magnifying glass, inspect for cracking around lower ends of wing lift struts and threaded area of rear spar attachment. Compliance: At 1500 hours TIS and thereafter at intervals not exceeding 500 hours TIS. Effective Date: 31 May 1969 Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 6 of 10 CAA of NZ DCA/PA-25/118 Operating Limitation Placard - Installation Applicability: All PA-25 aircraft fitted with Lycoming O-320 series engine and Marvel Schebler carburettor model MA-4SP, P/N 10-3678-32. Requirement: To prevent power interruption as result of abrupt throttle movement, attach to instrument panel in obvious position, the following operating limitation placard: "DO NOT OPERATE THROTTLE RAPIDLY, (IDLE TO FULL THROTTLE IN 2 SECONDS MINIMUM)" Minimum size for lettering is 1/8 in. (FAA AD 72-24-02 refers) Compliance: Within the next 10 hours TIS. Effective Date: 28 February 1973 DCA/PA-25/119 Fuselage Upper Longerons - Modification Applicability: PA-25-235 aircraft, S/N 25-02 and 25-2000 through to 25-3731 not incorporating Piper kit 756987. Requirement: Piper SB 341. (FAA AD 73-15-05 refers) Compliance: Within the next 625 hours TIS. Effective Date: September 1973 DCA/PA-25/120A Forward Wing Spars - Inspection Applicability: PA-25 aircraft, S/N 25-1 through to 25-1999. PA-25-235 and PA-25-260 aircraft, S/N 25-02 and 25-2000 through to 25-74005573. Requirement: Inspect per Piper SB 410. (FAA AD 73-26-01 refers) Compliance: Within the next 5 hours TIS for all forward wing spars with 2000 hours or more TTIS and thereafter at intervals not exceeding 300 hours TIS for model PA-25-235 and - 260, until Piper kit 760840 is embodied. (Piper SB 414 - Kit 760840 refer) Effective Date: DCA/PA-25/120 - 28 February 1974 DCA/PA-25/120A - 17 February 1986 DCA/PA-25/121F Cancelled – FAA AD 99-01-05R1 refers Effective Date: 14 January 2014 DCA/PA-25/122 Cabin Doors - Inspection Applicability: All PA-25-150, -235 and -260 aircraft. Requirement: To preclude possibility of failure in flight, inspect cabin door hinge fittings for corrosion and cracks. Renew defective fittings before further flight. Compliance: At intervals not exceeding 100 hours TIS. Effective Date: 20 June 1980 Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 7 of 10 CAA of NZ DCA/PA-25/123A Parking Brake Operation - Placard Applicability: PA-25, PA-25-235 and PA-25-260 aircraft, S/N 25-1 through to 25-8156024. Requirement: To prevent aircraft controllability problems while involved in ground operation because of improper brake operation, install one of the following in a central location on the pilot’s instrument panel in full view of the pilot; (1) A Piper P/N 81090-02 placard; or (2) A Piper P/N 683-107 placard. Note: The above referenced placards both contain the following wording: WARNING NO BRAKING WILL OCCUR IF AIRCRAFT BRAKES ARE APPLIED WHILE PARKING BRAKE HANDLE IS PULLED AND HELD (FAA AD 85-02-05R1 refers) Compliance: Required within 100 hours time-in-service after 22 March 1985 or prior to the next flight after the effective date of this AD, whichever occurs later, unless already accomplished. Effective Date: DCA/PA25/123 - 22 March 1985 DCA/PA25/123A - 19 December 1997 DCA/PA-25/124C Wing Spar Fuselage Attachment Assembly - Inspection Applicability: All PA-25, PA-25-235 and PA-25-260 aircraft. Requirement: To prevent possible in-flight separation of the wing caused by a cracked or corroded wing spar fuselage attachment assembly, accomplish the following: 1. For aircraft not embodied with Kosola and Associates STC No. SA00992AT, accomplish the instructions in FAA AD 95-12-01. Note 1: The Non Destructive Testing (NDT) procedures required by this AD must be accomplished in accordance with Civil Aviation Rule 43.67. The embodiment of Kosola and Associates STC No. SA00992AT is a terminating action to requirement 1 and is an acceptable alternate means of compliance to the inspection requirements of FAA AD 95-12-01. 2. For aircraft embodied with Kosola and Associates STC No. SA00992AT, comply with the instructions for continued airworthiness (inspect for corrosion and cracks) per Kosola & Associates Report No. KR-1342, dated February 7, 1996. Compliance: 1. By 30 December 2006, unless already accomplished and thereafter at intervals not to exceed 2 years. If a new cluster is installed into the fuselage frame, repetitive inspections are not required until 5 years after the replacement date on the respective fuselage side. 2. At intervals specified in the airworthiness limitations and inspection criteria section of Kosola & Associates Report No. KR-1342. Note 2: The airworthiness limitations and inspection criteria specified in Kosola & Associates Report No. KR-1342, is FAA approved. (FAA AD 95-12-01 and Kosola & Associates Report No. KR-1342 refers) Effective Date: DCA/PA-25/124 - 12 November 1993 DCA/PA-25/124A - 4 August 1995 DCA/PA-25/124B - 28 September 2006 DCA/PA-25/124C - 30 November 2006 Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 8 of 10 CAA of NZ DCA/PA-25/125 Induction Air Filters – Replacement Applicability: PA-25, PA-25-235 and PA-25-260 aircraft that are fitted with Purolator air filter P/N 638873, model CA161PL, or Piper P/N 460-632 (PS60007-2). Requirement: To prevent pieces of a damaged induction air filter from being ingested into the engine, which could result in reduced or loss of engine power, accomplish the following: Replace, per the maintenance manual, any Purolator/Facet induction air filter, Purolator P/N 638873, model No. CA161PL, Piper P/N 460-632 (PS60007-2), that meets the following conditions: • Was manufactured anytime from January 1997 through September 1998; and • Is identified with a ¼ inch high (white) ink stamp "FACET - 638873", and may include "FAA-PMA". Note: Piper SB 1022, and Purolator SB 090298.01 provide information relating to this AD, including procedures on how to identify the affected air filters. (FAA AD 99-26-05 refers) Compliance: Within the next 25 hours TIS. Effective Date: 27 January 2000 DCA/PA-25/126 Horizontal Stabilizer Supports – Inspection Applicability: PA-25, PA-25-235 and PA-25-260 aircraft, S/N all through LA-260-06008. Requirement: To prevent failure of the horizontal stabilizer supports due to severe corrosion and cracks which could result in loss of aircraft control, accomplish the following: 1. Inspect the horizontal stabilizer per Latinoamericana de Aviacion S.A. Service Bulletin (SB) No. 25/53/ 03, dated 10 May 2006. If any cracks, corrosion or defects are found, accomplish the instructions in paragraph "DEFINITIVE'' of SB No. 25/53/03, before further flight. 2. Modify both horizontal stabilisers per the instructions in paragraph "DEFINITIVE'' of SB No. 25/53/03. Note: Accomplishment of requirement 2 is a terminating action to the requirements of this AD. (FAA AD 2007-08-07 and Republic Argentina RA AD 2006-06-01R1 dated 17 November 2006 refer) Compliance: 1. At 1500 hours TTIS or within next 50 hours TIS, whichever is the later, unless already accomplished, and thereafter at intervals not to exceed 100 hours TIS or 12 months, whichever is the sooner, until requirement 2 of this AD is accomplished. 2. Within the next 1000 hours TIS. Effective Date: 31 May 2007 Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 9 of 10 CAA of NZ The State of Design ADs listed below are available directly from the National Airworthiness Authority (NAA) websites. Links to NAA websites are available on the CAA website at Links to state of design airworthiness directives | aviation.govt.nz If additional NZ ADs need to be issued when an unsafe condition is found to exist in an aircraft or aeronautical product in NZ, they will be added to the list below. 99-01-05R1 Cancelled – FAA AD 2015-08-04 refers Effective Date: 3 June 2015 2015-08-04 Wing Lift Struts and Forks – Inspection Note 1: FAA AD 2015-08-04 retains all the requirements in superseded FAA AD 99-01-05R1 and expands the AD applicability to include additional aircraft models. FAA AD 99-01-05R1 superseded FAA AD 99-01-05, DCA/J3/5B, DCA/PA18/120E, DCA/PA22/127D and DCA/PA25/121F. For aircraft already in compliance with the cancelled ADs, compliance with FAA AD 2015-08-04 is required at the next inspection required by the cancelled ADs. An inspection method accomplished in accordance with Radiographic Technique 57- 20-01 Rev 1 may be used as an alternate to the two inspection methods defined in paragraph (h)(1) and (h)(2) of FAA AD 2015-08-04. If the radiographic technique is used, inspect at intervals not to exceed 4 years. Note 2: Radiographic Technique 57-20-01 Rev 1 is available on the CAA AD webpage titled: Documents incorporated by reference in AD schedules. Refer: Documents incorporated by reference in AD schedules | aviation.govt.nz Effective Date: 3 June 2015 74-18-02 Fuel Lines - Inspection Applicability: PA-25-235 and PA-25-260 aircraft, S/N 25-7405573 through to 25-7405673. Effective Date: 25 February 2016 77-21-06 Fuselage Steel Tubing Cluster - Inspection Applicability: PA-25, PA-25-235 and PA-25-260 aircraft, S/N 25-1 and up. Effective Date: 25 February 2016 80-21-08 Forward Wing Spars - Inspection Applicability: All PA-25 series aircraft embodied with STC SA501SW. Effective Date: 25 February 2016 90-02-06 Forward Wing Spar Caps STC SA501SW - Inspection Applicability: All PA-25, PA-25-235 and PA-25-260 aircraft embodied with metal wing skin STC SA501SW. Effective Date: 25 February 2016 ANAC AD 2024-05-01 Cancelled - DCA/PA-25/127 refers Effective Date: 19 September 2024 Piper PA-25 Series (Pawnee) - Lavia Argentina S.A. (Laviasa) Issued 30 January 2025 Page 10 of 10 CAA of NZ * DCA/PA-25/127 Cancelled - Argentina ANAC AD 2024-05-01R1 refers Effective Date: 30 January 2025 * ANAC AD 2024-05-01R1 Forward and Aft Wing Spars - Inspection Applicability: All PA-25, PA-25-235 and PA-25-260 aircraft manufactured by Piper, Chincul, Laviasa and FAdeA SA. Effective Date: 30 January 2025






