AD Amdt-39-10232
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company CJ610 Series Turbojet and CF700 Series | Airworthiness Directives; General Electric Company CJ610 Series Turbojet and CF700 Series Turbofan Engines |
Unsafe Condition
Turbine torque ring or compressor drive shaft failure due to manufacturing defects from contaminated A286 material with iron-rich inclusions, which could result in uncontained engine failure.
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Required Actions
Remove from service affected turbine torque rings and compressor drive shafts listed by serial numbers in GE service bulletins and replace with serviceable parts within specified compliance times. Compliance is required per GE CF700 SB A72-155 and CJ610 SB A72-147.
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Compliance Time
Within 50 hours time in service or 60 days after effective date for some parts; within 300 hours TIS or 12 months after effective date for others.
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Affected Aircraft
GE CJ610 series turbojet and CF700 series turbofan engines with turbine torque rings and compressor drive shafts from specified serial ranges, installed on aircraft like Learjet 20, Westwind, Hansa Jet, Aero Commander Jet Commander, and Dassault Falcon 20 series.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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