Navigation – Master Minimum Equipment List – Integrated Standby Instrument System – Amendment
Superseded. Comply with 2022-0028, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus A319-151N, A319-153N, A319-171N, A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, A320-273N, A321-251N, A321-251NX, A321-252N, A321-252NX, A321-253N, A321-253NX, A321-271N, A321-271NX, A321-272N, and A321-272NX aircraft must amend the Airplane Flight Manual by incorporating the specified Temporary Revision within 7 days of the effective date. Concurrently, they must implement the updated Master Minimum Equipment List requirements and inform all flight crews to operate accordingly.
Summary
EASA Airworthiness Directive 2021-0150 is an interim safety directive affecting Airbus A319, A320, and A321 neo family aircraft. It addresses potential unreliable airspeed indications during take-off caused by erroneous pitot probe data, which could lead to unstable flight paths and reduced aircraft control. The directive mandates updates to the Airplane Flight Manual and Master Minimum Equipment List to mitigate this risk.
What changed
EASA Airworthiness Directive 2021-0150 requires operators to incorporate Airbus Airplane Flight Manual Temporary Revision 787 and update the Master Minimum Equipment List item 34-23-02B. These changes reinforce airspeed checks during take-off and mandate that the Integrated Standby Instrument System airspeed indication be operative. The directive also corrects a previous publication error and is considered an interim measure pending further action.
Why it matters
This directive is critical for aviation professionals as it addresses a latent safety risk that could affect flight safety during the critical take-off phase. Operators and maintenance teams must ensure compliance to prevent operational disruptions caused by airspeed discrepancies. Compliance ensures continued airworthiness and adherence to European Union aviation safety regulations.
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