AD 2018-26-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Due to a misbehaviour in the establishment of the FWS logic, it is possible that the AIR Auxiliary Power Unit (APU) BLEED LEAK Electronic Centralized Aircraft Monitoring (ECAM) alert triggers several times. This condition, if not corrected, could lead to exposure of critical locations and surrounding structure to heat stress, possibly resulting in reduced structural integrity of the aeroplane.
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Required Actions
Revising the airplane flight manual (AFM) to incorporate procedures related to an APU bleed leak.
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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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