Engine Fuel & Control — Master Minimum Equipment List — Handling Bleed Valve Inoperative — Amendment
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Airbus A380-841 and A380-842 aeroplanes must amend their MMEL within 30 days of the effective date, based on the instructions in the Airbus A380 MMEL Major Event Revision approved on 6 October 2020. They must also inform all flight crews of the changes and operate the aircraft according to the updated dispatch restrictions. Compliance with these requirements is mandatory unless previously accomplished.
Summary
EASA Airworthiness Directive 2021-0087 is an amendment addressing the Airbus A380-841 and A380-842 aeroplanes. It focuses on the engine fuel and control system, specifically handling the bleed valve inoperative condition as outlined in the Master Minimum Equipment List (MMEL). This directive mandates changes to dispatch restrictions to ensure continued airworthiness and safety.
What changed
EASA Airworthiness Directive 2021-0087 introduces amendments to the Airbus A380 MMEL by incorporating temporary dispatch restrictions for the handling bleed valve (HBV) inoperative condition. These changes follow a design review that identified significant effects on engine relight and surge margins when the HBV is stuck closed. The directive requires operators to update their MMEL and inform flight crews accordingly.
Why it matters
This directive is critical for aviation professionals because it addresses a potential unsafe condition that could lead to severe loss of thrust and possible loss of control if two engines are affected simultaneously. Operators, maintenance organizations, and compliance teams must ensure that the updated dispatch restrictions are implemented to maintain safety and regulatory compliance. Failure to comply could compromise aircraft performance during engine relight scenarios in adverse weather.
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