AD 2018-17-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Occurrences were reported of EHA units that were returned to the manufacturer (MOOG Aircraft Group) with degraded insulation resistance in the direct drive solenoid valve (DDSOV), due to moisture ingress, caused by incorrect sealing application.
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Required Actions
A one-time insulation check of each affected EHA, and, depending on findings, accomplishment of applicable corrective action(s), including replacing or reidentifying affected EHAs.
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Compliance Time
Before further flight
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Affected Aircraft
All 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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