AD 2002-25-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell | International Inc | Airworthiness Directives; Honeywell International Inc. TPE331-3, -5, -6, -8, -10, and -11 Series Turboprop and TSE331-3 Series Turboshaft Engines |
| engine | Garrett | Turbine | Airworthiness Directives; Honeywell International Inc. TPE331-3, -5, -6, -8, -10, and -11 Series Turboprop and TSE331-3 Series Turboshaft Engines |
Unsafe Condition
Separation of the first stage Ti 6-4 compressor impeller, leading to uncontained engine failure and in-flight shutdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove weld repaired first stage compressor impellers from service according to specified schedules based on cycles since weld repair.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 3,600 cycles-in-service (CIS) or at the next engine overhaul or major CAM compressor section inspection, depending on cycles since weld repair.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Honeywell International Inc. TPE331-3, -5, -6, -8, -10, and -11 series turboprop and TSE331-3 series turboshaft engines installed on various aircraft models, including but not limited to Ayres S-2R, Beechcraft, Cessna, CASA, De Havilland, Dornier, Fairchild, Grumman, Jetstream, Mitsubishi, Prop-Jets, Rockwell, Shorts, Pilatus, Schweizer, Twin Commander, and Sikorsky S-55 series helicopters.
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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