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Airworthiness Directive 2008-19-05

recurring
Official AD 2008-19-05 · FR doc E8-21125 · 2008-09-15 · reciprocating engine

Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan", installed. This AD requires initial and repetitive visual inspections and compression tests to detect cracks at the head- to-barrel interface, replacement of cylinder assemblies found cracked, and replacement of certain cylinder assemblies, at new reduced times- in-service. This AD results from reports of 45 failures with head separations of ECi cylinder assemblies. We are issuing this AD to prevent loss of engine power due to cracks at the head-to-barrel interface in the cylinder assemblies and possible engine failure caused by separation of a cylinder head, which could result in loss of control of the aircraft.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2008-19-05 applies to

MakesLycoming Engines
ModelsO-320, IO-320, AEIO-320, AIO-320, LIO-320, O-360, IO-360, HO-360
Serial-conditional — narrows to serials 1138-02–35171-22, 35239-01–37016-28.
Part-conditional — AEL65102-NST04, AEL65102-NST05, AEL65102-NST06, AEL65102-NST07, AEL65102-NST08, AEL65102-NST10, AEL85099.

Applies to Lycoming 320/360/540-series 'Parallel Valve' reciprocating engines only when fitted with ECi cylinder assembly P/N AEL65102 series (Titan) and cylinder head P/N AEL85099; affected cylinder assembly serial ranges are Group A SN1138-02 through SN35171-22 and Group B SN35239-01 through SN37016-28. AD Table 1 cross-references specific engine model suffixes (e.g., O-320-A1B, IO-320-A1A) to each cylinder assembly P/N; the full suffix-level model list is not reproduced here due to table length, and 540-series suffixes were not present in the retrieved text excerpt.

Whether AD 2008-19-05 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2008-19-05 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.