AD 2016-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | AlliedSignal Inc. | Various | Airworthiness Directives; Honeywell International Inc. (Type Certificate Previously Held by AlliedSignal Inc., Garrett Turbine Engine Company) Turbofan Engines |
| engine | Honeywell | International Inc | Airworthiness Directives; Honeywell International Inc. (Type Certificate Previously Held by AlliedSignal Inc., Garrett Turbine Engine Company) Turbofan Engines |
| engine | Garrett | Turbine | Airworthiness Directives; Honeywell International Inc. (Type Certificate Previously Held by AlliedSignal Inc., Garrett Turbine Engine Company) Turbofan Engines |
Unsafe Condition
Certain interstage turbine transition (ITT) ducts failing to meet containment capability requirements.
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Required Actions
Remove and replace the affected ITT ducts with parts eligible for installation. Do not install ITT ducts with serial numbers listed in Table 2 of Honeywell Service Bulletin TFE731-72-3789, Revision 0, unless marked with overhaul/repair instructions number 'P35864'.
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Compliance Time
Within 2,600 hours time-in-service after the effective date of this AD.
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Affected Aircraft
Honeywell International Inc. TFE731-4, -4R, -5AR, -5BR, and -5R turbofan engines with ITT duct, part number 3075292-4, installed, and serial numbers listed in Table 2 of Honeywell Service Bulletin TFE731-72-3789, Revision 0.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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