FUEL - FUEL STRAINER INSPECTION

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Multi-engine MANDATORY SERVICE LETTER TITLE FUEL - FUEL STRAINER INSPECTION EFFECTIVITY MODEL 337 337A 337B/T337B 337C/T337C 337D/T337D Beechcraft Hawker Cessna TEXTRON AVIATION MEL-28-02 SERIAL NUMBERS 337-0002 thru 337-0239 337-0240 thru 337-0305, 337-0307 thru 337-0469, 337-0471 thru 337-0525 337-0001, 337-0470, 337-0526 thru 337-0568, 337-0570 thru 337-0755 337-0756 thru 337-0978 337-0979 thru 337-1193 33701194 thru 33701316 337E/T337E F337E/FT337E 337F/T337F F337F/FT337F 337G F337G T337G 337H/T337H T337H-SP F33700001 thru F33700024 33700569, 33701317 thru 33701448, 33701450 thru 33701398 F33700025 thru F33700055 33701449, 33701463 thru 33701815 F33700056 thru F33700084 337-667, P3370001 thru P3370195, P3370197 thru P3370292 33701816 thru 33701919, 33701921 thru 33701922, 33701928 thru 33701950 33701920, 33701923 thru 33701927, 33701951 thru 33701955 F33700085 thru F33700086 FP33700001 thru FP33700023 P3370196, P3370293 thru P3370356 F337H FTB337/FTB337G/H P337H Spares Stock Also affected are any purchased 0756008-1 Fuel Strainer Bowl, after May 30, 2019, in spares stock or that was installed on the airplane. REASON Some 0756008-1 Fuel Strainer Bowl did not get the proper corrosion treatment. DESCRIPTION This service document provides instructions to do a visual inspection of the 0756008-1 Fuel Strainer Bowl for suspect part that did not receive correct corrosion treatment. January 5, 2023 MEL-28-02 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 © 2023 Beechcraft Hawker Multi-engine SERVICE LETTER MANDATORY Cessna TEXTRON AVIATION MEL-28-02 COMPLIANCE MANDATORY. This service document must be accomplished at the next 100-hour or 12-month (annual-type) inspection. A service document published by Textron Aviation may be recorded as completed in an aircraft log only when the following requirements are satisfied: 1) 2) 3) 4) 5) The mechanic must complete all of the instructions in the service document, including the intent therein. The mechanic must correctly use and install all applicable parts supplied with the service document kit. Only with written authorization from Textron Aviation can substitute parts or rebuilt parts be used to replace new parts. The mechanic or airplane owner must use the technical data in the service document only as approved and published. The mechanic or airplane owner must apply the information in the service document only to aircraft serial numbers identified in the Effectivity section of the document. 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 document 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. FLIGHT CREW OPERATIONS No Changes CONSUMABLE MATERIAL No specialized consumable materials are required to complete this service document. TOOLING No specialized tooling is required to complete this service document. REFERENCES Applicable Cessna Model Service or Maintenance 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 external electrical power. (2) Disconnect the airplane battery. 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. Remove engine cowlings as necessary to access the fuel strainer. (Refer to the applicable Models Service or Maintenance Manual.) MEL-28-02 Page 2 January 5, 2023 Beechcraft Hawker Multi-engine MANDATORY SERVICE LETTER Cessna TEXTRON AVIATION MEL-28-02 3. Do a visual inspection of the fuel strainer for the unique work order part markings as follows: • 112706 • 124963 • A. B. 132350 If the identified work order part markings are on the 0756008-1 Fuel Strainer Bowl, replace the 0756008-1 Fuel Strainer Bowl. (Refer to the applicable Models Service or Maintenance Manual.) If the identified work order part markings are not on the 0756008-1 Fuel Strainer Bowl, no further action is required. Go to Step 4. Install engine cowlings. (Refer to the applicable Models Service or Maintenance Manual.) 4. 5. Remove the maintenance warning tags and connect the airplane battery. 6. Make an entry in the airplane logbook that states compliance and method of compliance with this service document. MATERIAL INFORMATION If necessary, order the part below to complete this service letter. NEW P/N 0756008-1 QUAN- TITY 1 KEY WORD Fuel Strainer Bowl OLD P/N Same INSTRUCTIONS/ DISPOSITION Discard old, Install New * Please contact a Textron Aviation Authorized Service Facility for current cost and availability of parts listed in this service document. January 5, 2023 MEL-28-02 Page 3 Beechcraft Hawker Multi-engine OWNER ADVISORY Cessna TEXTRON AVIATION MEL-28-02 TITLE FUEL - FUEL STRAINER INSPECTION TO: Cessna Model 337, 337A, 337B/T337B, 337C/T337C, 337D/T337D, 337E/T337E, F337E/FT337E, 337/T337F, F337F/FT337F, 337G, F337G, T337G, 337H/T337H, T337H-SP, F337H FTB337/FT337G/H, P337H Aircraft Owners REASON Some 0756008-1 Bowl Fuel Strainer did not get the proper corrosion treatment. Spares Stock