AD 2018-20-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
When two angle of attack (AoA) sensors are adversely affected by icing conditions at the same time, data displayed on the back up speed scale (BUSS) could be erroneous.
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Required Actions
Revising the airplane flight manual (AFM) to provide guidance to the flightcrew for emergency procedures when erroneous airspeed indications are displayed on the BUSS, and for certain airplanes, removing a certain AFM revision.
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Compliance Time
Before further flight
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Affected Aircraft
Airbus SAS Model A318, A319, and A320 series airplanes and Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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