Airworthiness Directive · Amendment 39-12779 · Textron Lycoming Reciprocating Engines
Textron Lycoming Reciprocating Engines
This airworthiness directive (AD) is applicable to the reciprocating engine models in the following Table, that were shipped from the factory between April 1, 1999 and October 4, 2000, or rebuilt, or overhauled, or had the oil filter converter plate kit part number (P/N) LW-13904 or gasket P/N LW13388 replaced: Engine Applicability Table O-320................... -H1AD, -H1BD, -H2AD, -H2BD, -H3AD, -H3BD (L)O-360................ -A1AD, -A1F6D, -A1G6D, -A1LD, -A3AD, -A4AD, - A5AD, -E1A6D IO-360.................. -A1B6D, -A1D6D, -A3B6D, -A3D6D, -C1E6D, -J1AD, -J1A6D (L)TO-360............... -A1A6D, -C1A6D, -E1A6D, -F1A6D TIO-360................. -C1A6D (L)HIO-360.............. -E1AD, -E1BD, -F1AD O-540................... -H1A5D, -H1B5D, -H2A5D, -H2B5D, -J1A5D, - J1B5D, -J1C5D, -J1D5D, -J2A5D, -J2B5D, - J2C5D, -J2D5D, -J3A5D, -J3C5D, -L3C5D IO-540.................. -C4D5D, -K1A5D, -K1B5D, -K1E5D, -K1F5D, - K1G5D, -K1J5D, -L1A5D, -L1B5D, -M1A5D, - M1B5D, -M2A5D, -T4A5D, -T4B5D, -T4C5D, - U1A5D, -U1B5D, -V4A5D, -W1A5D, -W3A5D (L)TIO-540.............. -K1AD, -S1AD, -AA1AD, -AB1AD, -AB1BD, -F2BD, - J2BD, -N2BD, -R2AD, -T2AD, -V2AD AEIO-540................ -L1B5D TIO-541................. -E Series TIGO-541................ -D1A, -D1B, -E1A IO-720.................. -A1BD, -B1BD, -C1BD, -D1BD, -D1CD
This amendment supersedes emergency airworthiness directive (AD) 2000-18-53 that was sent previously to all known U.S. owners and operators of certain Textron Lycoming reciprocating engines. That action required before further flight after receipt of that emergency AD, replacement of the oil filter converter plate gasket or the converter plate kit. That action also required, within 10 hours time- in-service (TIS) or within 3 days after the effective date of that emergency AD, inspection of the oil filter base for signs of oil leakage and evidence of gasket extrusion. That action also required replacement of the converter plate gasket at intervals not to exceed 50 hours TIS since the last replacement of the gasket. This amendment requires the same replacements and inspection, and introduces the installation of an improved design gasket or converter plate kit as terminating action for the repetitive gasket replacements. The actions specified in this AD are intended to prevent complete loss of engine oil and subsequent seizing of the engine and possibility of fire, caused by oil leakage between the converter plate and accessory housing.
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.
