Airworthiness directives › 2023-25-05
AD 2023-25-05 Airworthiness Directives; Airbus SAS Airplanes
Models named: A319-151N, A319-153N, A319-171N, A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, A320-273N, A321-251N. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the Airbus SAS airplanes, certificated in any category, identified in paragraphs (c)(1) through (3) of this AD. (1) All Model A319-151N, A319-153N, and A319-171N airplanes. (2) All Model A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, and A320-273N airplanes. (3) All Model A321-251N, A321-251NX, A321-252N, A321-252NX, A321-253N, A321-253NX, A321-271N, A321-271NX, A321-272N, and A321-272NX airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2023-0093R1, dated May 15, 2023 (EASA AD 2023-0093R1).
Unsafe condition
This AD was prompted by the detection of several channel failures on the braking and steering control unit (BSCU), inducing, in case of dual channel failures, loss of anti-skid function together with the reversion to the alternate braking mode, and loss of nose wheel steering. This AD was further prompted by the determination that a type 1 relay combined with an affected BSCU could induce BSCU freezing. The FAA is issuing this AD to address these conditions, which could lead to loss of braking performance with significant increase in airplane stopping distance, possibly resulting in a runway excursion.
Affected ADs
This AD replaces AD 2022-07-15, Amendment 39-22003 (87 FR 22438, April 15, 2022) (AD 2022-07-15).
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1