AD Amdt-39-10831
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International | Airworthiness Directives; CFM International, S.A. CFM56-7B Series Turbofan Engines |
Unsafe Condition
Hydromechanical unit (HMU) fuel metering valve (FMV) signal faults that could lead to uncommanded engine acceleration or inflight engine shutdown.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install improved electronic engine control (EEC) software to replace repetitive HMU FMV signal fault inspections. Remove and replace HMU with a serviceable unit if necessary based on inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
CFM International, S.A. CFM56-7B series turbofan engines
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.