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Airworthiness Directive 98-22-11

recurring
Official AD 98-22-11 · FR doc 98-32047 · 1998-12-03 · turboshaft engine

Airworthiness Directives; AlliedSignal, Inc. Model T5317A-1 Turboshaft Engines

What this AD requires

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-22-11 that was sent previously to all known U.S. owners and operators of AlliedSignal, Inc. (formerly Textron Lycoming) model T5317A-1 turboshaft engines by individual letters. This AD requires, prior to further flight, a pressure test to determine if both fuel pumps in the regulator, Part Number (PN) 1-170- 240-93, are producing fuel pressure, and, if necessary, replacement of the fuel regulator with serviceable part. In addition, this AD requires repetitive engine fuel pump pressure tests. This amendment is prompted by a report of an accident involving an AlliedSignal, Inc. (formerly Textron Lycoming) model T5317A-1 turboshaft engine installed on a Kaman Aerospace model K-1200 rotorcraft engaged in logging operations. The actions specified by this AD are intended to prevent loss of fuel flow from the engine fuel regulator due to failure of both primary and secondary fuel pump drive shaft splines. This condition, if not corrected, could result in engine failure and forced autorotation landing.

Repetitive inspection. Re-inspect every 50 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 98-22-11 applies to

MakesAlliedsignalTextron Lycoming
ModelsT5317A-1, T5317A

AlliedSignal, Inc. was formerly Textron Lycoming.

Whether AD 98-22-11 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 98-22-11 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.