AD 2021-15-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Incorrect installation of the lower attachment parts of the trimmable horizontal stabilizer actuator (THSA) could lead to the loss of THSA primary load path and consequent activation of THSA secondary load path, and possibly result in reduced controllability of the airplane.
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Required Actions
Do a detailed inspection of the THSA lower attachment parts for discrepancies and corrective action if necessary, and prohibit using earlier versions of certain airplane maintenance manual (AMM) tasks, as specified in a European Union Aviation Safety Agency (EASA) AD.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
All Airbus SAS Model A330-200, -200 Freighter, -300, -800, and -900 series airplanes; and Model A340-200 and -300 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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