AD 2018-23-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Reports of false resolution advisories (RAs) from certain traffic collision avoidance systems (TCASs) could lead to a loss of separation from other airplanes, possibly resulting in a mid-air collision.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modification or replacement of certain TCAS processors, and prohibition of installation of those processors on post-mod aeroplanes.
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Compliance Time
Before further flight
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Affected Aircraft
Airbus SAS Model A318 and A319 series airplanes; Model A320-211, -212, -214, -231, -232, and -233 airplanes; and Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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