Airworthiness Directive · Amendment 39-9586 · Lycoming Engines Engines
Lycoming Engines Engines
This AD applies to Lycoming Engines AEIO-320-E1A, AEIO-320-E1B, AEIO-320-E2A, AEIO-320-E2B, 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, HIO-360-A1A, HIO-360-A1B, HIO-360-B1A, HIO-360-B1B, HIO-360-C1A, HIO-360-C1B, HIO-360-D1A, HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD, HO-360-A1A, HO-360-B1A, HO-360-B1B, HO-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, IO-320-D1A, IO-320-D1B, IO-320-E1A, IO-320-E1B, IO-320-E2A, IO-320-E2B, IO-320-F1A, IO-360-A1A, IO-360-A1B, IO-360-A1B6, IO-360-A1B6D, IO-360-A1C, IO-360-A1D, IO-360-A1D6, IO-360-A1D6D, IO-360-A2A, IO-360-A2B, IO-360-A2C, IO-360-A3B6, IO-360-A3B6D, IO-360-A3D6D, IO-360-B1A, IO-360-B1B, IO-360-B1C, IO-360-B1D, IO-360-B1E, IO-360-B1F, IO-360-B1F6, IO-360-B2E, IO-360-B2F, IO-360-B2F6, IO-360-B4A, IO-360-C1A, IO-360-C1B, IO-360-C1C, IO-360-C1C6, IO-360-C1D6, IO-360-C1E6, IO-360-C1E6D, IO-360-C1F, IO-360-D1A, IO-360-E1A, IO-360-F1A, IO-360-J1A6D, IO-360-J1AD, IO-360-K2A, IO-360-L2A, IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5, IO-540-B1A5, IO-540-B1B5, IO-540-B1C5, IO-540-C1B5, IO-540-C1C5, IO-540-C2C, IO-540-C4B5, IO-540-C4C5, IO-540-C4D5, IO-540-D4A5, IO-540-D4B5, IO-540-D4C5, IO-540-E1A5, IO-540-E1B5, IO-540-E1C5, IO-540-G1A5, IO-540-G1B5, IO-540-G1C5, IO-540-G1D5, IO-540-G1E5, IO-540-G1F5, IO-540-J4A5, IO-540-K1A5, IO-540-K1B5, IO-540-K1C5, IO-540-K1D5, IO-540-K1E5, IO-540-K1F5, IO-540-K1G5, IO-540-K1H5, IO-540-K1J5, IO-540-K1K5, IO-540-K2A5, IO-540-L1A5, IO-540-L1C5, IO-540-M1A5, IO-540-M1C5, IO-540-N1A5, IO-540-T4B5, IVO-360-A1A, LO-360-A1G6D, LO-360-A1H6, LO-360-E1AD, LO-360-E1BD, LO-360-E2AD, LO-360-E2BD, LIO-320-B1A, LIO-320-C1A, LIO-360-C1E6, LIO-360-M1A, LTO-360-A1A6D, O-235, O-235-A, O-235-AP, O-235-B, O-235-BP-C, O-235-C1, O-235-C1A, O-235-C1B, O-235-C1C, O-235-C2A, O-235-C2B, O-235-C2C, O-235-E1, O-235-E1B, O-235-E2A, O-235-E2B, O-235-F1, O-235-F1B, O-235-F2A, O-235-F2B, O-235-G1, O-235-G1B, O-235-G2A, O-235-G2B, O-235-H2C, O-235-J2A, O-235-J2B, O-235-K2A, O-235-K2B, O-235-K2C, O-235-L2A, O-235-L2C, O-235-M1, O-235-M2C, O-235-M3C, O-235-N2A, O-235-N2C, O-235-P1, O-235-P2A, O-235-P2C, O-235-P3C, O-320-A1A, O-320-A1B, O-320-A2A, O-320-A2B, O-320-A2C, O-320-A2D, O-320-A3A, O-320-A3B, O-320-A3C, O-320-B1A, O-320-B1B, O-320-B2A, O-320-B2B, O-320-B2C, O-320-B2D, O-320-B3A, O-320-B3B, O-320-B3C, O-320-C1A, O-320-C1B, O-320-C2A, O-320-C2B, O-320-C2C, O-320-C3A, O-320-C3B, O-320-C3C, O-320-D1A, O-320-D1B, O-320-D1C, O-320-D1D, O-320-D1F, O-320-D2A, O-320-D2B, O-320-D2C, O-320-D2F, O-320-D2G, O-320-D2H, O-320-D2J, O-320-D3G, O-320-E1A, O-320-E1B, O-320-E1C, O-320-E1F, O-320-E1J, O-320-E2A, O-320-E2B, O-320-E2C, O-320-E2D, O-320-E2F, O-320-E2G, O-320-E2H, O-320-E3D, O-320-E3H, O-320-H1AD, O-320-H1BD, O-320-H2BD, O-320-H3AD, O-320-H3BD, O-360-A1A, O-360-A1AD, O-360-A1C, O-360-A1D, O-360-A1F, O-360-A1F6, O-360-A1F6D, O-360-A1G, O-360-A1G6, O-360-A1G6D, O-360-A1H, O-360-A1H6, O-360-A1LD, O-360-A1P, O-360-A2A, O-360-A2D, O-360-A2E, O-360-A2F, O-360-A2G, O-360-A2H, O-360-A3A, O-360-A3AD, O-360-A3D, O-360-A4A, O-360-A4AD, O-360-A4D, O-360-A4G, O-360-A4J, O-360-A4K, O-360-A4M, O-360-A4N, O-360-A4P, O-360-A5AD, O-360-B1A, O-360-B1B, O-360-B2A, O-360-B2B, O-360-B2C, O-360-C1A, O-360-C1C, O-360-C1E, O-360-C1F, O-360-C1G, O-360-C2A, O-360-C2B, O-360-C2C, O-360-C2D, O-360-C2E, O-360-C4F, O-360-C4P, O-360-D1A, O-360-D2A, O-360-D2B, O-360-E1AD, O-360-E1BD, O-360-E2AD, O-360-E2BD, O-360-F1A6, O-360-G1A6, O-360-J2A, O-540-A1A, O-540-A1A5, O-540-A1B5, O-540-A1C5, O-540-A1D, O-540-A1D5, O-540-A2B, O-540-A3D5, O-540-A4A5, O-540-A4B5, O-540-A4C5, O-540-A4D5, O-540-B1A5, O-540-B1B5, O-540-B1D5, O-540-B2A5, O-540-B2B5, O-540-B2C5, O-540-B4A5, O-540-B4B5, O-540-D1A5, O-540-E4A5, O-540-E4B5, O-540-F1A5, O-540-F1B5, O-540-G1A5, O-540-G2A5, O-540-H1A5, O-540-H2A5, TIO-360-A1A, TIO-360-A1B, TIO-360-A3B6, TIO-360-C1A6D, TO-360-A1A6D, TO-360-C1A6D, TO-360-E1A6D, TO-360-F1A6D, VO-360-A1A, VO-360-A1B, VO-360-B1A.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain Textron Lycoming reciprocating engines, that currently requires replacement of sintered iron impellers in oil pumps. This amendment continues to require replacement of sintered iron impellers, but also requires replacement of aluminum impellers. This amendment is prompted by reports of additional oil pump failures caused by aluminum impellers, which do not have the reliability of the hardened steel impellers. The actions specified by this AD are intended to prevent an oil pump failure due to impeller failure, which could result in an engine failure.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
