AD 82-23-03 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | TFE731-2 | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-2A | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-2B | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-2BR | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-2C | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-3 | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-3A | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-3AR | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-3B | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
| engine | Honeywell International Inc. | TFE731-3BR | GARRETT TURBINE ENGINE COMPANY Model TFE731-2, -3, -3R, -3A, -3AR, -3B and -3BR Series Engines |
Unsafe Condition
Failure of high pressure compressor impellers due to cracks originating from a double radius in the seal relief region or a manufacturing notch in the forward balance ring, and cracking and possible failure of fan and compressor rotor discs due to exceeded cyclic life limits, and failure of high pressure turbine blades, pinion gear assembly, and sun gear due to exceeded service life limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and rework compressor impeller Part Numbers 3070274-1 or 3072639-1 per Garrett Service Bulletin TFE731-72-3239RWK. Remove fan and compressor rotor discs (Part Numbers 3072162, 3072190, 3072191, 3072192, 3072193) from service before reaching specified life limits or 30 cycles after March 7, 1975. Replace high pressure turbine blades (Part Number 3072111-1) before 1,000 hours or 200 hours after March 7, 1975. Replace pinion gear assembly (Part Number 3071626-1) and sun gear (Part Number 3071598-1) before 500 hours or 50 hours after March 7, 1975. Replace third stage compressor stator assembly (Part Numbers 3070279-7, -8, -10) before 500 hours or 50 hours after March 7, 1975.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to exceeding specified cycles or hours as outlined in the AD, or before further flight if not accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Garrett Turbine Engine Company TFE731-2, -3, -3R, -3A, -3AR, -3B, -3BR series engines, including specific serial ranges for certain components.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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