Airworthiness Directive · Amendment 39-9460 · Lycoming Engines, Textron Lycoming, AVCO Corporation Engines
Lycoming Engines, Textron Lycoming, AVCO Corporation Engines
This AD applies to Lycoming Engines, Textron Lycoming, AVCO Corporation IO-320-B1A, IO-320-B1B, IO-320-B1C, IO-320-B1D, IO-320-B1E, IO-320-B2A, IO-320-C1A, IO-320-C1B, 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-B1B, 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-C1G6, IO-540-C1B5, IO-540-C1C5, IO-540-C2C, IO-540-C4B5, IO-540-C4B5D, IO-540-C4C5, IO-540-C4D5, IO-540-C4D5D, IO-540-D4A5, IO-540-D4B5, IO-540-D4C5, IO-540-E1A5, IO-540-E1B5, IO-540-E1C5, IO-540-K1A5, IO-540-K1A5D, IO-540-K1B5, IO-540-K1B5D, IO-540-K1C5, IO-540-K1D5, IO-540-K1E5, IO-540-K1E5D, IO-540-K1F5, IO-540-K1F5D, IO-540-K1G5, IO-540-K1G5D, IO-540-K1H5, IO-540-K1J5, IO-540-K1J5D, IO-540-K1K5, IO-540-K2A5, O-235-L2A, O-235-L2C, 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-B2C, 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-H2AD, 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-F1A6, O-540-E4A5, O-540-E4B5, O-540-E4C5, O-540-E4G5, O-540-J1A5D, O-540-J1B5D, O-540-J1C5D, O-540-J1D5D, O-540-J2A5D, O-540-J2B5D, O-540-J2C5D, O-540-J2D5D, O-540-J3A5, O-540-J3A5D, O-540-J3C5D, R-680, R-680-2, R-680-4, R-680-5, R-680-6, R-680-B2, R-680-B4 Series, R-680-B5, R-680-B6, R-680-BA, R-680-D5, R-680-D6, R-680-E1, R-680-E2, R-680-E3, R-680-E3A, R-680-E3B, TIO-360-C1A6D, TIO-540-F2BD, TIO-540-J2B, TIO-540-J2BD, TIO-540-S1AD, TVO-435-A1A.
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 adopts a new airworthiness directive (AD) that is applicable to certain Textron Lycoming reciprocating engines installed on certain aircraft identified by registration numbers. This action supersedes priority letter AD 94-14-13 that currently requires engines certified to operate on 91 octane or higher aviation gasoline (avgas) to undergo a teardown and analytical inspection for detonation damage, and engines certified to operate on 80 octane avgas to undergo inspection for evidence of possible internal engine damage. This action revises incorrect engine model numbers and aircraft registration numbers listed in the priority letter AD. This amendment is prompted by the Federal Aviation Administration (FAA) receiving more accurate information concerning which aircraft were fueled with the contaminated mixture at the affected airports. The actions specified by this AD are intended to prevent detonation due to low octane, which can result in severe engine damage and subsequent 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.
