AD 2002-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Honeywell International, Inc., (formerly AlliedSignal, Inc. and Textron Lycoming) T5313B, T5317 Series, and T53 Series Turboshaft Engines |
| engine | Honeywell | International | Airworthiness Directives; Honeywell International, Inc., (formerly AlliedSignal, Inc. and Textron Lycoming) T5313B, T5317 Series, and T53 Series Turboshaft Engines |
Unsafe Condition
Centrifugal compressor impellers may have been inadvertently misidentified, potentially leading to operation beyond their design service life, which could result in premature failure, uncontained engine failure, in-flight shutdown, or damage to the helicopter.
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Required Actions
Revise the operating cycle count (prorate) for affected compressor impellers. Perform initial and repetitive inspections of the compressor impellers, with eventual replacement if necessary. Mark the affected compressor impellers.
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Compliance Time
Before further flight
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Affected Aircraft
Honeywell International, Inc. (formerly AlliedSignal, Inc. and Textron Lycoming) T5313B, T5317 series, and former military T53 series turboshaft engines with certain serial number centrifugal compressor impellers installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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