Doors — On-board Entrance Stairs / Motoreductor Units — Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus A318, A319, A320, and A321 aircraft must replace motoreductor units installed on on-board entrance stairs before they accumulate 39,400 flight cycles or within 12 months after 1 February 2023, whichever is later. Only serviceable motoreductor units may be installed from the effective date onward. Compliance must be carried out following the instructions in Airbus Service Bulletins A320-52-1202 or A320-52-1205.
Summary
EASA Airworthiness Directive 2023-0014 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus A318, A319, A320, and A321 aeroplanes. It addresses the replacement of specific motoreductor units installed on the on-board entrance stairs to ensure continued safe operation. The directive applies to motoreductor units with part numbers 4255417, 4394656, or 4339747 installed on these aircraft models.
What changed
This new airworthiness directive introduces a mandatory replacement requirement for motoreductor units on Airbus on-board entrance stairs that have reached or exceeded 39,400 flight cycles since first installation. It also defines serviceable parts and allows installation of only those parts that meet the serviceable criteria. The directive is the first of its kind addressing this specific fatigue life concern for these components.
Why it matters
This directive is critical for aviation professionals because it addresses a potential unsafe condition where motoreductor failure could lead to in-flight deployment of the airstairs, risking loss of aircraft control. Operators, maintenance organizations, and compliance teams must ensure timely replacement of affected parts to maintain airworthiness and regulatory compliance. Failure to comply could result in operational restrictions or safety hazards.
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