Indicating and Recording Systems — Flight Warning Computer Software — Modification
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Airbus A340-541, A340-542, A340-642, and A340-643 aircraft with Flight Warning Computer software earlier than T5-0 must upgrade to software standard T5-0 within 12 months of 31 January 2024. Installation of any Flight Warning Computer software earlier than T4-0 is prohibited from the effective date. Alternative compliance methods using later approved software standards are acceptable if approved by Airbus.
Summary
EASA Airworthiness Directive 2024-0020 is an official regulatory document addressing Airbus A340-541, A340-542, A340-642, and A340-643 aeroplanes. It mandates modifications to the Flight Warning Computer software to enhance safety related to the landing gear system. The directive applies to all manufacturer serial numbers of these Airbus A340 models.
What changed
This new Airworthiness Directive requires the installation of Flight Warning Computer software standard T5-0 or later on affected Airbus A340 aircraft. It prohibits the installation or reinstallation of earlier software standards such as T4-0. The directive introduces a software upgrade to prevent uncommanded landing gear extension during cruise by improving failure annunciation to the flight crew.
Why it matters
This directive is critical for aviation professionals because it addresses a safety risk involving potential uncommanded landing gear extension that could cause structural or system damage. Operators and maintenance organizations must ensure compliance to maintain aircraft airworthiness and prevent in-flight hazards. Compliance ensures that flight crews receive proper warnings to manage landing gear system failures effectively.
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