AD 2011-16-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Aviation Model FALCON 7X | Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes |
Unsafe Condition
Uncontrolled pitch trim runaway during descent, potentially caused by a production defect in the Horizontal Stabilizer Electronic Control Unit (HSECU).
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Required Actions
Inspect and replace the HSECU if equipped with P/N 051244-04, install verified HSECU P/N 051244-04 with a stamped 'V', revise the Aircraft Flight Manual (AFM) to include limitations, install a cockpit placard, amend the Minimum Equipment List (MEL), and implement operational tests of the Horizontal Stabilizer Trim Actuator (HSTA) electric motors reversion relays.
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Compliance Time
Before further flight
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Affected Aircraft
Dassault Aviation Model FALCON 7X airplanes equipped with HSECU P/N 051244-02, 051244-04, or 051244-05.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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