# AD 73-10-02: Bendix Fuel Injectors - Type: Airworthiness directive - Status: Current - Products: Bendix Fuel Injectors, AIO-320-A1A, AIO-320-A1B, AIO-320-A2A, AIO-320-A2B, AIO-320-B1B, AIO-320-C1B, AIO-360-A1A, AIO-360-A1B, AIO-360-A2A, AIO-360-A2B, AIO-360-B1B and 79 more - Effective: May 16, 1973 - Superseded by: Nothing supersedes this AD - Product type: Appliance - Amendment: 39-1634 - Registered aircraft: 21,462 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1DF646BDEF5EFB1286256A32005BE4B7.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/73-10-02 ## The airworthiness directive 73-10-02 BENDIX: Amendment 39-1634. Applies to Bendix Fuel Injectors Models RSA-5AD1, RSA-51B1 and RSA-10AD1 installed on Lycoming Engines Models: IO540-C1B5, -C1C5, -C2C, -C4B5, -C4C5, -D4A5, -D4B5, -J4A5, -L1A5, -M1A5, -M2A5D, -N1A5, -R1A5; IO360-A1A, -A1B, -A1B6, -A1B6D, -A1C, -A1D, -A1D6, -A2A, -A2B, -A2C, -B1B, -B1C, -B1D, -B1E, -B1F, -B2E, -B2F, -B4A, -C1A, -C1B, -C1C, -C1D6, -C1E6, -C1F, -D1A, -E1A, -F1A; IO-320-A1A, -A2A, -E2A, -B1A, -B1B, -B1C, -B1D, -B2A, -C1A, -D1A, -D1B, -E2B; AIO-320-A1A, -A1B, -A2A, -A2B, -B1B, -C1B; LIO-320-B1A, -C1A; IGO-480-A1A6; IVO-360-A1A; HIO-360-A1A, -B1A, -B1B, -C1A, -C1B; AIO-360-A1A, -A2A, -A1B, -A2B, -B1B; LIO-360-C1E6; IO-720-A1A, -B1A; IVO-540-A1A; TIO-540-A1A, -A1B, -A1C, -A2A, -A2C, -A2B, -A1A, -B1A, -C1A, -E1A, -G1A, -H1A; TIO-360-A1A, -A1B, -A3B6; and IO-720-A1B, -C1B. Compliance required within the next 25 hours time in service after the effective date of this Airworthiness Directive, and at each subsequent installation of the subject Fuel Injectors. To detect defective diaphragm assemblies, Bendix P/N 2529470, in Bendix Fuel Injectors, accomplish the following: a) Determine from the airplane and engine logbooks whether the fuel injector has been repaired and/or overhauled between September 30, 1972, and February 28, 1973. If it is established that the fuel injector has not been repaired and/or overhauled between September 30, 1972, and February 28, 1973 record compliance with Paragraph "a" of this Airworthiness Directive in the engine logbook. b) If the fuel injector has been repaired and/or overhauled between September 30, 1972, and February 28, 1973, unless already accomplished, inspect the fuel injector in accordance with Bendix Service Bulletin No. RS-41 dated February 13, 1973, Bendix Service Bulletin No. RS-41 revised April 7, 1973, or subsequent FAA approved revisions; or by any other method approved by the Chief, Engineering and Manufacturing Branch, Great Lakes Region. Indicate compliance on airworthy parts by stamping a "T" after the fuel injector serial number, and record compliance in the engine logbook or return to service statement. Replace or repair fuel injectors having defective diaphragms with airworthy fuel injector units. NOTE: Only appropriately rated FAA approved repair stations are authorized to perform the inspection in "b" above. This amendment is effective May 16, 1973. ## Affected data sheets (9) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 1E10](https://openairdocs.org/tcds/1E10): Lycoming Engines; names 38 of 89 models: IO-360-C1D6, HIO-360-B1B, HIO-360-C1B, AIO-360-A1B, IO-360-B2E, IO-360-B1F, AIO-360-A2A, IO-360-B1C… - [TCDS 1E12](https://openairdocs.org/tcds/1E12): Lycoming Engines; names 19 of 32 models: AIO-320-C1B, AIO-320-A1A, IO-320-B1C, LIO-320-B1A, IO-320-B1D, AIO-320-A2B, IO-320-B2A, AIO-320-A1B… - [TCDS 1E4](https://openairdocs.org/tcds/1E4): Lycoming Engines; names 13 of 81 models: IO-540-M2A5D, IO-540-C1B5, IO-540-N1A5, IO-540-C4B5, IO-540-C4C5, IO-540-M1A5, IO-540-D4A5, IO-540-J4A5… - [TCDS E14EA](https://openairdocs.org/tcds/E14EA): Lycoming Engines; names 10 of 40 models: TIO-540-G1A, TIO-540-A1A, TIO-540-A2A, TIO-540-C1A, TIO-540-A2C, TIO-540-A1B, TIO-540-H1A, TIO-540-A2B… - [TCDS 1E15](https://openairdocs.org/tcds/1E15): Textron Lycoming Subsidiary of Textron Inc.; names 4 of 12 models: IO-720-B1A, IO-720-A1A, IO-720-A1B, IO-720-C1B - [TCDS E16EA](https://openairdocs.org/tcds/E16EA): Lycoming Engines; names 3 of 4 models: TIO-360-A1B, TIO-360-A1A, TIO-360-A3B6 - [TCDS 1E1](https://openairdocs.org/tcds/1E1): Lycoming Engines; names 1 of 4 models: IVO-360-A1A - [TCDS E-275](https://openairdocs.org/tcds/E-275): Lycoming Engines; names 1 of 33 models: IGO-480-A1A6 - [TCDS E11EA](https://openairdocs.org/tcds/E11EA): Lycoming Engines; names 1 of 1 models: IVO-540-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: 21,462 (0 by airframe model, 21,462 by engine model) - Makers: Piper 9,346, Cessna 3,336, Mooney 2,136, Beech 494, Bellanca 455, Rockwell International 309, Robinson Helicopter 300, Maule 238, Socata 211, Aero Commander 210 Models with the most aircraft: - [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series): 6,174 aircraft (engine model) - [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 IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series): 1,707 aircraft (engine model) - [Lycoming IO-360-B4A](https://openairdocs.org/engine/lycoming-io-360-b4a): 985 aircraft (engine model) - [Lycoming IO-360-A1B6D](https://openairdocs.org/engine/lycoming-io-360-a1b6d): 844 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-360-A1D6](https://openairdocs.org/engine/lycoming-io-360-a1d6): 192 aircraft (engine model) - [Lycoming TIO-540 series](https://openairdocs.org/engine/lycoming-tio-540-series): 190 aircraft (engine model) - [Lycoming IO-540-C4B5](https://openairdocs.org/engine/lycoming-io-540-c4b5): 179 aircraft (engine model) - [Lycoming I0-360-B1E](https://openairdocs.org/engine/lycoming-i0-360-b1e): 141 aircraft (engine model) - [Lycoming IO-360-A1B6](https://openairdocs.org/engine/lycoming-io-360-a1b6): 141 aircraft (engine model) - [Lycoming IO-720 series](https://openairdocs.org/engine/lycoming-io-720-series): 120 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) All 71 models: https://openairdocs.org/ad/73-10-02/models.md Every aircraft: https://openairdocs.org/ad/73-10-02/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.