AD 2000-18-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Allison | Engine Company AE 3007A and 3007C Series | Airworthiness Directives; Allison Engine Company AE 3007A and 3007C Series Turbofan Engines |
Unsafe Condition
Potential hardware failure mode in some AE 3007 series FADEC's, specifically the internal power supply transistor TR1, leading to uncommanded engine shutdowns, inability to switch FADEC channels, or inability to shut down an engine.
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Required Actions
Inspect installed FADEC's to identify suspect hardware serial numbers. Remove suspect FADEC's before further flight to ensure no more than one engine with suspect FADEC's is installed on the same airplane. Replace all suspect FADEC's with serviceable ones within 3 months after the effective date.
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Compliance Time
Before further flight (inspection), within 3 months after the effective date (replacement).
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Affected Aircraft
Allison Engine Company AE 3007A and AE 3007C series turbofan engines with specific FADEC hardware serial numbers, installed on Embraer Model EMB-145, EMB-145ER, EMB-145MR, EMB-145LR, EMB-135ER, EMB-135LR, and Cessna 750 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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