AD 2025-25-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
An occurrence of loss of control of an outboard aileron surface was reported. Subsequent investigations determined that the electronic card of the FCRM of that aileron had been contaminated by hydraulic fluid. In addition, EASA determined that certain servocontrols were exposed to hydraulic contamination before delivery of the airplane to its first operator. Due to the similarity of design, elevator and rudder FCRMs could be subject to the same failure mode.
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Required Actions
Replace any affected elevator FCRM, prohibit the installation of aileron or spoiler FCRMs in place of elevator or rudder FCRMs, and limit the installation of aileron or spoiler FCRMs in place of elevator or rudder FCRMs. Install FCGS PRIM P14.1.3 and SEC S14.1.2 software standards and prohibit installation of earlier software standards.
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Compliance Time
Before further flight
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Affected Aircraft
Airbus SAS Model A350-941 and -1041 airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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