# AD 67-22-06: Fuel Injectors - Type: Airworthiness directive - Status: Current - Products: Lycoming Engines HIO-360-A1A, HIO-360-B1A, HIO-360-B1B, HIO-360-C1A, IO-320-A1A, IO-320-A2A, IO-320-B1A, IO-320-B1B, IO-320-B1C, IO-320-B1D, IO-320-B2A, IO-320-C1A and 19 more - Effective: August 9, 1967 - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-448 - Registered aircraft: 13,645 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A9550DDA2DAADBB88625682A00503F9F.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/67-22-06 ## The airworthiness directive 67-22-06 LYCOMING: Amdt. No. 39-448, Part 39, Federal Register July 20, 1967. Applies to Model IO- 320 Series, IO-360-A1A, -A2A, -B1B, -B1C, -B1D, -C1A, IVO-360-A1A, HIO-360-A1A, -B1A, -B1B, -C1A, IO-540-C1B5, -C1C5, -C2C, C4B5 and D4A5 engines. Engines equipped with the latest Bendix RSA-5 Series fuel injectors listed below are excepted as follows: Parts list numbers with suffix numbers after the serial number as shown or higher are excepted. (Where a suffix number does not appear, compliance is required.) Serial No./ Serial No./ Parts List Suffix No. Parts List Suffix No. 2524054-2 S.N./33 2524189-2 S.N./10 2524119-2 S.N./15 2524213-2 S.N./7 2524145-3 S.N./24 2524216-2 S.N./12 2524147-3 S.N./14 2524199-2 S.N./15 2524171-2 S.N./10 Compliance required within the next 50 hours' time in service after the effective date of this AD, unless already accomplished. To prevent possible failures of the Delrin stemmed fuel diaphragm assembly P/N 2520887 or 2523067, accomplish the following: Remove fuel diaphragm assembly P/N 2520887 or P/N 2523067, and spring holder P/N 2520636 and replace with fuel diaphragm assembly P/N 2523307, either uncoated or green teflon coated, retainer cup P/N 2523478 and nut P/N 178491. (Lycoming Service Bulletin No. 305B covers this subject.) This amendment effective August 9, 1967. ## Affected data sheets (4) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 1E12](https://openairdocs.org/tcds/1E12): Lycoming Engines; names 15 of 32 models: IO-320-B1C, IO-320-F1A, IO-320-B1D, IO-320-E1B, IO-320-B2A, IO-320-E2B, IO-320-E1A, IO-320-C1A… - [TCDS 1E10](https://openairdocs.org/tcds/1E10): Lycoming Engines; names 10 of 89 models: HIO-360-B1B, IO-360-B1C, IO-360-A2A, IO-360-B1D, IO-360-B1B, HIO-360-C1A, IO-360-A1A, HIO-360-B1A… - [TCDS 1E4](https://openairdocs.org/tcds/1E4): Lycoming Engines; names 5 of 81 models: IO-540-C1B5, IO-540-C4B5, IO-540-D4A5, IO-540-C1C5, IO-540-C2C - [TCDS 1E1](https://openairdocs.org/tcds/1E1): Lycoming Engines; names 1 of 4 models: IVO-360-A1A ## 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: 13,645 (0 by airframe model, 13,645 by engine model) - Makers: Piper 4,548, Mooney 1,890, Cessna 1,861, Beech 447, Bellanca 346, Robinson Helicopter 299, Maule 235, Rockwell International 210, Diamond Aircraft Ind 175, Socata 157 Models with the most aircraft: - [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series): 6,174 aircraft (engine model) - [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series): 4,219 aircraft (engine model) - [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series): 1,707 aircraft (engine model) - [Lycoming HIO-360 series](https://openairdocs.org/engine/lycoming-hio-360-series): 336 aircraft (engine model) - [Lycoming IO-540-D4A5](https://openairdocs.org/engine/lycoming-io-540-d4a5): 237 aircraft (engine model) - [Lycoming IO-360 series](https://openairdocs.org/engine/lycoming-io-360-series): 217 aircraft (engine model) - [Lycoming IO-360-A1A](https://openairdocs.org/engine/lycoming-io-360-a1a): 196 aircraft (engine model) - [Lycoming IO-540-C4B5](https://openairdocs.org/engine/lycoming-io-540-c4b5): 179 aircraft (engine model) - [Lycoming IO-360-B1B](https://openairdocs.org/engine/lycoming-io-360-b1b): 67 aircraft (engine model) - [Lycoming IO-320-D1A](https://openairdocs.org/engine/lycoming-io-320-d1a): 58 aircraft (engine model) - [Lycoming IO-320-B1A](https://openairdocs.org/engine/lycoming-io-320-b1a): 55 aircraft (engine model) - [Lycoming HI0-360 series](https://openairdocs.org/engine/lycoming-hi0-360-series): 54 aircraft (engine model) - [Aerosport IO-540-D4A5](https://openairdocs.org/engine/aerosport-io-540-d4a5): 25 aircraft (engine model) - [Lycoming HIO-360-B1A](https://openairdocs.org/engine/lycoming-hio-360-b1a): 16 aircraft (engine model) - [Superior IO-320-A series](https://openairdocs.org/engine/superior-io-320-a-series): 13 aircraft (engine model) - [Lycoming IO-320-E2A](https://openairdocs.org/engine/lycoming-io-320-e2a): 11 aircraft (engine model) - [Lycoming IO-540-C1B5](https://openairdocs.org/engine/lycoming-io-540-c1b5): 9 aircraft (engine model) - [Lycoming I0-360 series](https://openairdocs.org/engine/lycoming-i0-360-series): 7 aircraft (engine model) - [Lycoming IO-360-C1A](https://openairdocs.org/engine/lycoming-io-360-c1a): 7 aircraft (engine model) - [Lycoming IO-320-C1A](https://openairdocs.org/engine/lycoming-io-320-c1a): 7 aircraft (engine model) All 36 models: https://openairdocs.org/ad/67-22-06/models.md Every aircraft: https://openairdocs.org/ad/67-22-06/aircraft.md Its text cites no advisory circulars or STCs. --- 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.