SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION
Cessna Citation M2 · Service Bulletins
Overview
This service letter provides instructions for inspecting and properly torquing the mounting nut on the fuel low level float switch for the Cessna Citation M2. It aims to prevent potential fuel leaks into the main landing gear wheel well due to improper torque.
- Applies to Citation M2 models with serial numbers 0800 thru 1028, 1030, 1031.
- Inspection and torque of the fuel low level float switch mounting nut is recommended during scheduled maintenance.
- Torque specification for the mounting nut is between 145 to 150 inch-pounds.
- No specialized tooling is required for this service.
- Compliance must be recorded in the aircraft logbook.
- Textron Aviation is not responsible for maintenance quality unless performed at their service centers.
- No parts are required to complete this service document.
- Labor hours estimated for the task is 2.0 hours.
Document
Source
Originally published by tadistributors.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Service Bulletins
- Year ·
- 2019
- File size ·
- 218 KB
- Publisher ·
- tadistributors.com
- Language ·
- en
Specifications & performance
Extracted from this document.
Specifications
- Sealant type ·
- U470642 Type I, Class B2 (6 ounce Simkit)
What is the SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION?
The SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION is a service bulletins for the Cessna Citation M2, dated 2019.
Where does the SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION come from?
This copy of the SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION was originally published by tadistributors.com and is hosted on Sprinkle as a free, searchable reference copy.
What year was the SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION published?
The SERVICE LETTER - FUEL - FUEL LOW LEVEL FLOAT SWITCH MOUNTING NUT TORQUE INSPECTION — the Cessna Citation M2 service bulletins on file — is dated 2019.
Most owners only have the POH. Here's the essential set for the Cessna Citation M2.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
More Cessna Citation M2manuals & documents
In this document
Effectivity
This service letter is applicable to Citation M2 models with serial numbers 0800 thru 1028, 1030, and 1031.
Reason
To ensure the mounting nut on the fuel low level float switch is properly torqued to prevent fuel leaks.
Compliance
Recommended to be accomplished during scheduled maintenance or inspection.
Accomplishment Instructions
Instructions include grounding the aircraft, removing sealant, torquing the nut, sealing, and logging compliance.
Warranty
Eligible airplanes may qualify for parts and labor coverage if warranty is active on the original issue date.
Consumable Material
Sealant U470642 Type I, Class B2 is required for pressure sealing applications.
Safety notes
- Fuel may leak into the main landing gear wheel well if the mounting nut is not torqued properly.
- Only Textron Aviation can authorize changes to the service bulletin.
- Maintenance practices must comply with acceptable standards in the aviation industry.
Full document text
Citation SERVICE LETTER SL525-28-06 TITLE FUEL - FUEL LOW LEVEL FLOAT SWITCH (SL001, LEFT; SR001, RIGHT) MOUNTING NUT TORQUE INSPECTION EFFECTIVITY MODEL SERIAL NUMBERS 525 (M2) -0800 thru -1028, -1030, -1031 REASON To make sure that the mounting nut on the fuel low level float switch (SL001, Left; SR001, Right) is properly torqued. Fuel may leak into the main landing gear wheel well if the mounting nut is not torqued properly. DESCRIPTION This service letter provides instructions to inspect and properly torque the mounting nut on the fuel low level switch (SL001, Left; SR001, Right). COMPLIANCE RECOMMENDED. This service bulletin should be accomplished at a scheduled maintenance period or inspection. A service bulletin published by Textron Aviation may be recorded as completed in an aircraft log only when the following requirements are satisfied: 1) The mechanic must complete all of the instructions in the service bulletin, including the intent therein. 2) The mechanic must correctly use and install all applicable parts supplied with the service bulletin kit. Only with written authorization from Textron Aviation can substitute parts or rebuilt parts be used to replace new parts. 3) The mechanic or airplane owner must use the technical data in the service bulletin only as approved and published. 4) The mechanic or airplane owner must apply the information in the service bulletin only to aircraft serial numbers identified in the Effectivity section of the bulletin. 5) The mechanic or airplane owner must use maintenance practices that are identified as acceptable standard practices in the aviation industry and governmental regulations. No individual or corporate organization other than Textron Aviation is authorized to make or apply any changes to a Textron Aviation-issued service bulletin, service letter, or flight manual supplement without prior written consent from Textron Aviation. Textron Aviation is not responsible for the quality of maintenance performed to comply with this document, unless the maintenance is accomplished at a Textron Aviation-owned Service Center. CONSUMABLE MATERIAL You must use the consumable materials that follow, or their equivalent, to complete this service document. NAME NUMBER MANUFACTURER USE Sealant U470642 Type I, Class B2 (6 ounce Simkit) Textron Aviation Parts Distribution 7121 Southwest Boulevard Wichita, KS 67215 For pressure sealing applications. SL525-28-06 September 25, 2019 Page 1 of 3 Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800 This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991 COPYRIGHT © 2019 SL525-28-06 Page 2 September 25, 2019 Citation SERVICE LETTER SL525-28-06 TOOLING No specialized tooling is required to complete this service document. REFERENCES Citation Standard Practices Manual PUBLICATIONS AFFECTED None ACCOMPLISHMENT INSTRUCTIONS 1. Prepare the airplane for maintenance. A. Make sure that the airplane is electrically grounded. B. Make sure that all switches are in the OFF/NORM position. C. Disconnect electrical power from the airplane. (1) Disconnect the airplane batteries. (2) Disconnect external electrical power. D. Attach maintenance warning tags to the battery and external power receptacle that have "DO NOT CONNECT ELECTRICAL POWER - MAINTENANCE IN PROGRESS" written on them. 2. (Refer to Figure 1, Detail A.) Remove sealant from around the fuel low level float switch (SL001, Left; SR001, Right) mounting nut. 3. Torque the fuel low level float switch (SL001, Left; SR001, Right) mounting nut from 145 to 150 inch pounds. (Refer to Citation Standard Practices Manual, Chapter 20, Tubing, Hose and Fittings - Maintenance Practices.) 4. Fillet seal around the fuel low level float switch (SL001, Left; SR001, Right) mounting nut with Type 1 Class B-2 sealant. (Refer to Citation Standard Practices Manual, Chapter 20, Fuel, Weather, Pressure, and High-Temperature Sealing - Maintenance Practices.) 5. Remove the maintenance warning tags and connect the airplane batteries. 6. Make an entry in the airplane logbook that states compliance and method of compliance with this service document. NOTE: Textron Aviation recommends that compliance with all service documents is reported to a maintenance tracking system provider. • Complete a record of compliance. (Maintenance Transaction Report, Log Book Entry, or other record of compliance.) • Put a copy of the completed record of compliance in the airplane logbook. • Send a copy of the completed record of compliance to the maintenance tracking system provider used. Citation SERVICE LETTER SL525-28-06 Figure 1. Fuel Low Level Float Switch (SL001, Left; SR001, Right) (Sheet 1) SL525-28-06 September 25, 2019 Page 3 Citation OWNER ADVISORY SL525-28-06 TITLE FUEL - FUEL LOW LEVEL FLOAT SWITCH (SL001, LEFT; SR001, RIGHT) MOUNTING NUT TORQUE INSPECTION TO: Cessna Model 525 (M2) Aircraft Owner REASON To make sure that the mounting nut on the fuel low level float switch (SL001, Left; SR001, Right) is properly torqued. Fuel may leak into the main landing gear wheel well if the mounting nut is not torqued properly. COMPLIANCE RECOMMENDED. This service document should be accomplished at a scheduled maintenance period or inspection. LABOR HOURS WORK PHASE LABOR-HOURS Torquing / Sealing 2.0 MATERIAL AVAILABILITY No parts are required to complete this service document. WARRANTY This service document is recommended. Eligible airplanes may qualify for parts and labor coverage to the extent noted in the Labor Hours and Material Availability sections of this document. Eligibility: Airplanes identified within the serial number effectivity of this service document must have active Airframe warranty coverage on the original issue date of this document and the
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coverage must be active on the day the work is accomplished. Labor Coverage: Textron Aviation-owned and Textron Aviation-authorized Service Facilities rated to perform maintenance on the specific model of Cessna Aircraft may submit a claim for the labor necessary to accomplish this service document as defined in the Labor Hours section of this document. Credit Application: After this service document has been accomplished, a claim must be submitted to Textron Aviation within 30 days of the service document completion. Claims for compliance of this service document are to be filed as a W3 type claim. Please submit your claim form online at ww2.txtav.com/Parts or email the completed Textron Aviation Claim Form to warranty@txtav.com. If submitted on-line a Return Authorization will be provided. If a paper claim is submitted your claim will be entered into the system and a Return Authorization will be sent to you. The Return Authorization must accompany any required return parts (see Material Availability), to the point of purchase. Parts to be returned to Textron Aviation Parts Distribution should be forwarded to: Textron Aviation Parts Distribution SL525-28-06 September 25, 2019 Page 1 of 2 Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800 This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991 COPYRIGHT © 2019 SL525-28-06 Page 2 September 25, 2019 Citation OWNER ADVISORY SL525-28-06 Warranty Administration 285 South Greenwich Road Bldg B89, Docks 1-4 Wichita, KS 67206 USA Expiration: September 25, 2021 Textron Aviation reserves the right to void continued airplane warranty coverage for the parts affected by this service document until the service document is accomplished. NOTE: As a convenience, service documents are now available online to all our customers through a simple, free-of-charge registration process. If you would like to sign up, please visit the Customer Access link at www.txtavsupport.com to register.