Is AD E8-1238 a recurring Airworthiness Directive?

No — AD E8-1238 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD E8-1238 apply to?

AD E8-1238 applies to Honeywell International Inc. — models 2C, 3B, 3BR, 3C, 3CR, 3D, 3DR, 4R. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive E8-1238

one-time

AD E8-1238 · 2008-01-31 · turbine engine

Airworthiness Directives; Honeywell International Inc. TFE731-2C, -3B, -3BR, -3C, -3CR, -3D, -3DR, -4R, -5AR, -5BR, -5R, -20R, -20AR, -20BR, -40, -40AR, -40R, and -60 Series Turbofan Engines

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for Honeywell International Inc. (Honeywell) TFE731-2C, -3B, -3BR, -3C, - 3CR, -3D, -3DR, -4R, -5AR, -5BR, -5R, -20R, -20AR, -20BR, -40, -40AR, - 40R, and -60 series turbofan engines. This AD requires removal from service of certain high pressure (HP) turbine rotor assemblies with part numbers (P/Ns) 3075772-1 and 3060841-1 using a drawdown schedule, and returning them to Honeywell for curvic root radius inspection. This AD results from the manufacturer's report that some HP turbine rotor discs received improperly machined radii in the root of the forward and aft curvic teeth during manufacture. We are issuing this AD to prevent uncontained failure of the HP turbine rotor assembly, which could result in damage to the airplane.

Which aircraft AD E8-1238 applies to

MakesHoneywell International Inc.

Models2C, 3B, 3BR, 3C, 3CR, 3D, 3DR, 4R, 5AR, 5BR, 5R, 20R, 20AR, 20BR, 40, 40AR, 40R, 60, TFE731

Applies only to engines with certain high pressure (HP) turbine rotor discs (specific part numbers/serial numbers identified elsewhere in the AD, not enumerated in this applicability excerpt) that received improperly machined curvic-tooth root radii during manufacture.

Whether AD E8-1238 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 E8-1238 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.