# AD 63-14-03: Oil Pump Drive Shaft - Type: Airworthiness directive - Status: Current - Products: Lycoming Engines IO-540-A1A5, IO-540-B1A5, IO-540-B1B5, IO-540-B1C5, IO-540-C1B5, IO-540-E1A5, IO-540-G1A5, O-540-A1A, O-540-A1A5, O-540-A1B5, O-540-A1C5, O-540-A1D and 12 more - Effective: July 6, 1963 - Superseded by: Nothing supersedes this AD - Product type: Engine - Registered aircraft: 9,884 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4D9F37707DA7E0C586256A3B006E63B7.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/63-14-03 ## The airworthiness directive 63-14-03 LYCOMING: Amdt. 583 Part 507 Federal Register July 6, 1963. Applies to O-540 Series Engines with Serial Numbers 101-40 Through 6129-40 and IO-540 Series Engines with Serial Numbers 101-48 Through 551-48 Which Do Not Incorporate Oil Pump Drive Shaft P/N's 67512 (Redesigned) or 74641. Compliance required as indicated. (a) For Model O-540 Series engines Serial Numbers 101-40 through 5264-40 and IO-540 Series engines, Serial Numbers 101-48 through 423-48, compliance with (c) required within 25 hours' time in service after the effective date of this AD and every 100 hours' time in service thereafter. (b) For Model O-540 Series engines, Serial Numbers 5265-40 through 6129-40 and IO-540 Series engines, Serial Numbers 424-48 through 551-48, compliance with (c) required as follows: (1) Within 25 hours' time in service after the effective date of this AD and every 100 hours' time in service thereafter for engines with more than 275 hours' time in service on the effective date of this AD. (2) Prior to the accumulation of 300 hours total time in service and every 100 hours' time in service thereafter for engines with 275 hours' or less time in service on the effective date of this AD. (c) Inspect the oil pump drive shaft (P/N 67512) on applicable engines in accordance with instructions contained in Lycoming Service Bulletin No. 295. Any shafts which are found to be damaged shall be replaced before further flight. These inspections shall be continued until Lycoming P/N 67512 (redesigned) or P/N 74641 oil pump drive shaft is installed at which time the inspections may be discontinued. NOTE: All remanufactured engines shipped from Lycoming after April 1, 1963, have the new shaft installed. This directive effective July 6, 1963. ## Affected data sheets (2) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS E-295](https://openairdocs.org/tcds/E-295): Lycoming Engines; names 17 of 47 models: O-540-B2B5, O-540-A1D, O-540-F1B5, O-540-A3D5, O-540-F1A5, O-540-A1D5, O-540-A1A5, O-540-A1A… - [TCDS 1E4](https://openairdocs.org/tcds/1E4): Lycoming Engines; names 7 of 81 models: IO-540-A1A5, IO-540-B1C5, IO-540-G1A5, IO-540-C1B5, IO-540-B1B5, IO-540-E1A5, IO-540-B1A5 ## 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: 9,884 (0 by airframe model, 9,884 by engine model) - Makers: Piper 5,032, Cessna 2,206, Robinson Helicopter 734, Maule 472, Socata 157, Rockwell International 88, Commander 65, Aero Commander 45, Smith 40, Britten-Norman 36 Models with the most aircraft: - [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series): 5,228 aircraft (engine model) - [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series): 4,219 aircraft (engine model) - [Lycoming O-540-F1B5](https://openairdocs.org/engine/lycoming-o-540-f1b5): 299 aircraft (engine model) - [Lycoming O-540-B2B5](https://openairdocs.org/engine/lycoming-o-540-b2b5): 27 aircraft (engine model) - [Lycoming O-540-A1D5](https://openairdocs.org/engine/lycoming-o-540-a1d5): 18 aircraft (engine model) - [Lycoming O-540 series](https://openairdocs.org/engine/lycoming-o-540-series): 17 aircraft (engine model) - [Lycoming IO-540-A1A5](https://openairdocs.org/engine/lycoming-io-540-a1a5): 16 aircraft (engine model) - [Lycoming O-540-J1A5D](https://openairdocs.org/engine/lycoming-o-540-j1a5d): 11 aircraft (engine model) - [Lycoming IO-540-C1B5](https://openairdocs.org/engine/lycoming-io-540-c1b5): 9 aircraft (engine model) - [Lycoming IO-540-G1A5](https://openairdocs.org/engine/lycoming-io-540-g1a5): 7 aircraft (engine model) - [Lycoming O-540-A1A5](https://openairdocs.org/engine/lycoming-o-540-a1a5): 7 aircraft (engine model) - [Lycoming IO-540-B1A5](https://openairdocs.org/engine/lycoming-io-540-b1a5): 4 aircraft (engine model) - [Lycoming IO-540-E1A5](https://openairdocs.org/engine/lycoming-io-540-e1a5): 4 aircraft (engine model) - [Lycoming O-540-A1A](https://openairdocs.org/engine/lycoming-o-540-a1a): 4 aircraft (engine model) - [Lycoming O-540-A1B5](https://openairdocs.org/engine/lycoming-o-540-a1b5): 4 aircraft (engine model) - [Lycoming O-540-A1C5](https://openairdocs.org/engine/lycoming-o-540-a1c5): 4 aircraft (engine model) - [Lycoming O-540-A2B](https://openairdocs.org/engine/lycoming-o-540-a2b): 2 aircraft (engine model) - [Lycoming O-540-A1D](https://openairdocs.org/engine/lycoming-o-540-a1d): 1 aircraft (engine model) - [Lycoming O-540-B1A5](https://openairdocs.org/engine/lycoming-o-540-b1a5): 1 aircraft (engine model) - [Lycoming O-540-B1B5](https://openairdocs.org/engine/lycoming-o-540-b1b5): 1 aircraft (engine model) All 22 models: https://openairdocs.org/ad/63-14-03/models.md Every aircraft: https://openairdocs.org/ad/63-14-03/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.