AD 2025-16-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
OHDS sensing elements that do not properly detect thermal bleed leak events, which could result in an air leak remaining undetected by the OHDS at an affected position and not being isolated during flight, possibly resulting in localized areas of the main landing gear bay and keel beam being exposed to high temperatures and consequent reduced structural integrity of the airplane. Missing heat treatment of the actuation pin of the SLOGC, which could cause its jamming, with consequent failure of oxygen flow activation. Poor reactivity of the start powder used inside the affected oxygen generators, which could lead to a reduction of the available oxygen capacity of the airplane and could result in injury to airplane occupants. Improper installation of the THSA ball screw jack, which can compromise the failsafe design of the THSA. Erroneous accumulated life information in the THSA release certificate, which could lead to operation of the THSA beyond the certificated life limit.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Accomplish the actions specified in EASA AD 2025-0075R1, except for any differences identified as exceptions in the regulatory text of this AD. This includes obtaining approved instructions if an affected part is installed and prohibiting installation of affected parts.
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Affected Aircraft
All Airbus SAS Model A321-271NY airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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