AD 95-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | TFE731-3 | Airworthiness Directives; AlliedSignal Inc. TFE731-3 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3A | Airworthiness Directives; AlliedSignal Inc. TFE731-3 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3AR | Airworthiness Directives; AlliedSignal Inc. TFE731-3 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3B | Airworthiness Directives; AlliedSignal Inc. TFE731-3 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3BR | Airworthiness Directives; AlliedSignal Inc. TFE731-3 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3R | Airworthiness Directives; AlliedSignal Inc. TFE731-3 Series Turbofan Engines |
Unsafe Condition
Low pressure turbine (LPT) disks may separate through the disk web due to creep fatigue, which may result in an uncontained engine failure and damage to the aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service first and second stage LPT disks with specific part numbers and serial numbers listed in AlliedSignal Aerospace Alert Service Bulletins TFE731-A72-3544 and TFE731-A72-3557, and replace with serviceable disks within 1,500 hours time in service after the effective date or at the next LPT assembly removal, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 1,500 hours time in service (TIS) after the effective date of this AD, or at the next removal of the LPT assembly, whichever occurs first
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
AlliedSignal Inc. (formerly Garrett Turbine Engine Company) TFE731-3, -3A, -3AR, -3B, -3BR, and -3R turbofan engines except TFE731-3A-300G and TFE731-3AR-200G engines installed on IAI 1125 Westwind Astra aircraft.
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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