AD 2018-02-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A318 | Airworthiness Directives; Airbus 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, leading to an increased flight crew workload that could ultimately result in reduced control of the airplane.
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Required Actions
Revising the airplane flight manual (AFM) to provide guidance to the flight crew for emergency procedures when erroneous airspeed indications are displayed on the BUSS.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Airbus Model A318, A319, and A320 series airplanes, and Model A321-111, -112, -131, -211, -212, -213, -231, -232 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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