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Airworthiness Directive 02-6502

one-time
AD 02-6502 · 2002-03-21 · other

Airworthiness Directives; Honeywell International Inc. (formerly AlliedSignal Inc. and Textron Lycoming) LTS101 Series Turboshaft and LTP101 Series Turboprop Engines

What this AD requires

This amendment revises an existing airworthiness directive (AD), that is applicable to Honeywell International Inc. (formerly AlliedSignal Inc. and Textron Lycoming) LTS101 series turboshaft and LTP101 series turboprop engines. The existing AD will become effective on March 27, 2002, and requires a one-time visual inspection for surface finish and a one-time fluorescent penetrant inspection for cracks of certain impellers installed on LTS101 series turboshaft and LTP101 series turboprop engines. This amendment requires the same inspections, and in addition, allows installation of impellers that pass those inspections. This revision to the existing AD is prompted by an inadvertent omission in the existing AD to include allowance of installation of impellers that pass inspections required by the AD. The actions specified by this AD are intended to prevent impeller failure from cracks in the impeller back face area, which could result in an uncontained engine failure.

Which aircraft AD 02-6502 applies to

MakesAlliedsignalHoneywell International
Part-conditional — 4-101-052-57, 4-101-052-62.

Boilerplate applicability only; engine model and aircraft platform (airplane vs. helicopter) are not identified in this excerpt beyond the SB reference (AlliedSignal/Honeywell International SB LT 101-72-30-0186); classified as 'other' because turboshaft vs. turboprop cannot be determined from the text. Requires a one-time visual/fluorescent-penetrant inspection of impellers P/N 4-101-052-57 and 4-101-052-62 for back-face cracks within 900 Ng cycles, replacement of any impeller exceeding acceptable limits, and prohibits installing these P/N impellers after the effective date unless a listed serviceable P/N-or-SN or a passing inspection applies, to prevent impeller failure from back-face cracking.

Whether AD 02-6502 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 02-6502 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.