AD 2017-16-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A318 | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
Blockage of two Angle of Attack (AOA) probes during climb leading to activation of the Alpha Protection (Alpha Prot) while the Mach number increases, resulting in a continuous nose-down pitch rate that cannot be stopped with backward sidestick inputs, even in the full backward position. This could lead to loss of control of the airplane.
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Required Actions
Replace certain AOA sensors. Perform a detailed inspection and a functional heating test for discrepancies on certain AOA sensors, and replace the affected AOA sensors.
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Compliance Time
Within 12 months of the effective date of October 2, 2017.
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Affected Aircraft
All Airbus Model A318, A319, A320, and A321 series airplanes equipped with certain UTC Aerospace (UTAS) AOA sensors, or certain SEXTANT/THOMSON AOA sensors, or Thales AOA sensors Part Number (P/N) C16291AB.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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