AD 96-05-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Honeywell International Inc. | TFE731-2 | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-2A | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-2B | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-2BR | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-2C | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3 | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3A | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3AR | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3B | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
| engine | Honeywell International Inc. | TFE731-3BR | Airworthiness Directives; AlliedSignal Inc. TFE731 Series Turbofan Engines |
Unsafe Condition
Fatigue cracking in the fan rotor disk dovetail slots due to higher than initially calculated stress levels, which can result in uncontained failure of the fan rotor disk, inflight engine shutdowns, severe secondary damage, and fan rotor assembly separation from the engine.
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Required Actions
Perform initial and repetitive eddy current inspections using improved procedures for detecting dovetail slot cracks, disallow fluorescent penetrant inspection (FPI) as an alternative method, and comply with specified AlliedSignal service bulletins.
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Compliance Time
Effective April 2, 1996.
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Affected Aircraft
AlliedSignal Inc. (Honeywell International Inc.) TFE731-2, -2A, -2B, -2BR, -2C, -3, -3A, -3AR, -3B, -3BR, -3C, -3CR, -3D, -3DR, -3R, and -4R series turbofan engines with specific fan rotor disk part numbers (3072161-5, 3072816-1/-2/-3, 3073436-5, 3073539-(All), 3074529-(All)).
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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