# AD 83-22-04: Injector Fuel Diaphragm Stem - Type: Airworthiness directive - Status: Current - Products: Lycoming Engines AEIO-540-L1B5D, IO-540-AA1A5, IO-540-G1B5, IO-540-G1C5, IO-540-G1D5, IO-540-K1A5, IO-540-K1A5D, IO-540-K1B5, IO-540-K1C5, IO-540-K1D5, IO-540-K1F5, IO-540-K1F5D and 21 more - Effective: November 4, 1983 - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-4748 - Registered aircraft: 10,334 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5DD41FDD9136F3138625684200548704.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/83-22-04 ## The airworthiness directive 83-22-04 AVCO LYCOMING: Amendment 39-4748. Applies to all Avco Lycoming IO-540-G1B5, -G1C5, -G1D5, -K1A5, -K1A5D, -K1B5, -K1C5, -K1D5, -K1F5, -K1F5D, -K1G5, -K1G5D, -K1J5, -K1J5D, - M1B5D, -S1A5, -AA1A5: AEIO-540-L1B5D; TIO-540-F2BD, -J2BD, -N2BD, -S1AD, -U2A, -V2AD; LTIO-540-F2BD, -J2BD, -N2BD, S1AD -U2A, -V2AD; LTI-540-F2BD, -J2BD, -N2BD, -U2A, -V2AD; TIO-541-E1A4, -E1B4, -E1C4; TIGO-541-E1A, series engines equipped with Bendix Models RSA-10DB1, RSA-10DB2, RSA-10ED1, and RSA-10ED2 fuel injectors as identified in Bendix Service Bulletin RS-88, including Supplement 1, Section 1.A. (1), (2) and (3). Compliance required within the next 50 hours in service after the effective date of this AD, unless previously accomplished. To prevent engine failure due to fatigue failure of the injector fuel diaphragm stem, replace P/N 2539806 fuel diaphragm assembly with P/N 2541803 and perform flow calibration and nameplate reidentification in accordance with Section 2 Accomplishment Instructions of Bendix Energy Controls Division Service Bulletin RS-85, or FAA approved equivalent. An equivalent method of compliance with this AD, may be used if approved by the Manager, New York Aircraft Certification Office, FAA, New England Region. Upon submission of substantiation data by an owner or operator through an FAA maintenance inspector, the Manager, New York Aircraft Certification Office, may adjust the compliance time specified in this AD. In accordance with FAR 21.197 and 21.199, the aircraft may be flown to a location where the alterations required by this AD can be performed. AVCO Lycoming S/B No. 467, Bendix Energy Control Service Bulletin Nos. RS-85 including Supplement No. 1, Revised August 10, 1983, and RS-88 including Supplement No. 1, Revised August 10, 1983, identified and described in this directive are incorporated herein and made by reference a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents may obtain copies upon request to Bendix Energy Controls Division, 717 North Bendix Drive, South Bend, Indiana 46620. These documents may also be examined at the Office of Regional Counsel, FAA New England Regional Office, 12 New England Executive Park, Burlington, Massachusetts 01803. A historical file on this AD is maintained at the New England Regional Office. This amendment becomes effective on November 4, 1983. ## Affected data sheets (4) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 1E4](https://openairdocs.org/tcds/1E4): Lycoming Engines; names 18 of 81 models: IO-540-K1J5D, IO-540-G1B5, AEIO-540-L1B5D, IO-540-K1F5D, IO-540-K1J5, IO-540-K1D5, IO-540-K1B5, IO-540-S1A5… - [TCDS E14EA](https://openairdocs.org/tcds/E14EA): Lycoming Engines; names 11 of 40 models: LTIO-540-N2BD, TIO-540-V2AD, LTIO-540-F2BD, TIO-540-J2BD, TIO-540-F2BD, TIO-540-S1AD, TIO-540-N2BD, TIO-540-U2A… - [TCDS E10EA](https://openairdocs.org/tcds/E10EA): Lycoming Engines; names 3 of 5 models: TIO-541-E1A4, TIO-541-E1B4, TIO-541-E1C4 - [TCDS E19EA](https://openairdocs.org/tcds/E19EA): Lycoming Engines; names 1 of 6 models: TIGO-541-E1A ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 10,334 (0 by airframe model, 10,334 by engine model) - Makers: Piper 5,297, Cessna 1,747, Robinson Helicopter 296, Beech 275, Mooney 239, Socata 239, Maule 232, Rockwell International 178, Smith 140, Bellanca 136 Models with the most aircraft: - [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series): 4,886 aircraft (engine model) - [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series): 4,219 aircraft (engine model) - [Lycoming AEIO-540 series](https://openairdocs.org/engine/lycoming-aeio-540-series): 433 aircraft (engine model) - [Lycoming TI0-541 series](https://openairdocs.org/engine/lycoming-ti0-541-series): 271 aircraft (engine model) - [Lycoming TIO-540 series](https://openairdocs.org/engine/lycoming-tio-540-series): 191 aircraft (engine model) - [Lycoming IO-540-K1G5D](https://openairdocs.org/engine/lycoming-io-540-k1g5d): 52 aircraft (engine model) - [Lycoming IO-540-K1G5](https://openairdocs.org/engine/lycoming-io-540-k1g5): 48 aircraft (engine model) - [Lycoming IO-540-K1A5](https://openairdocs.org/engine/lycoming-io-540-k1a5): 44 aircraft (engine model) - [Lycoming AEIO540-L1B5D](https://openairdocs.org/engine/lycoming-aeio540-l1b5d): 41 aircraft (engine model) - [Lycoming IO-540-G1D5](https://openairdocs.org/engine/lycoming-io-540-g1d5): 26 aircraft (engine model) - [Lycoming TIO-540-J2BD](https://openairdocs.org/engine/lycoming-tio-540-j2bd): 24 aircraft (engine model) - [Lycoming IO-540-K1B5](https://openairdocs.org/engine/lycoming-io-540-k1b5): 17 aircraft (engine model) - [Lycoming TIO-540-S1AD](https://openairdocs.org/engine/lycoming-tio-540-s1ad): 13 aircraft (engine model) - [Lycoming IO-540-K1J5](https://openairdocs.org/engine/lycoming-io-540-k1j5): 10 aircraft (engine model) - [Lycoming IO-540-S1A5](https://openairdocs.org/engine/lycoming-io-540-s1a5): 10 aircraft (engine model) - [Lycoming TIO-541-E1C4](https://openairdocs.org/engine/lycoming-tio-541-e1c4): 9 aircraft (engine model) - [Lycoming IO-540-AA1A5](https://openairdocs.org/engine/lycoming-io-540-aa1a5): 8 aircraft (engine model) - [Lycoming LTIO-540-J2BD](https://openairdocs.org/engine/lycoming-ltio-540-j2bd): 5 aircraft (engine model) - [Lycoming TIO-540-F2BD](https://openairdocs.org/engine/lycoming-tio-540-f2bd): 4 aircraft (engine model) - [Lycoming IO-540-G1B5](https://openairdocs.org/engine/lycoming-io-540-g1b5): 3 aircraft (engine model) All 33 models: https://openairdocs.org/ad/83-22-04/models.md Every aircraft: https://openairdocs.org/ad/83-22-04/aircraft.md Its text cites no advisory circulars or STCs. ## NTSB investigations that cite this AD (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB LAX84FA407](https://openairdocs.org/ntsb/LAX84FA407), Jul 21, 1984: Piper PA-32-300 (N8632N), Goleta, CA, destroyed, 3 fatal --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.