EASA AD 2021-0071
Aircraft Flight Manual —Take-off Distance Determination Procedure — Amendment
Summary
EASA Airworthiness Directive 2021-0071 is an amendment addressing the Airbus A330-323, A330-342, and A330-343 aeroplanes. It mandates an update to the Aircraft Flight Manual (AFM) to correct erroneous performance data affecting take-off distance calculations under specific conditions. This directive ensures accurate performance computations for these Airbus A330 models.
What Changed
This amendment requires the insertion of a corrected performance database section into the AFM, specifically updating the Complementary Performance Data File CP330A03. The change corrects an error in the aircraft data files that previously caused inaccurate take-off, accelerate-stop, and landing distance computations when operating on dry snow at certain altitudes.
Why It Matters
Accurate take-off distance calculations are critical for flight safety, especially under one-engine inoperative conditions and contaminated runway surfaces. This correction prevents potential runway overruns that could result in aircraft damage or occupant injury. Operators and maintenance teams must ensure compliance to maintain airworthiness and operational safety.
What To Do
Operators of affected Airbus A330 models must implement the AFM Certification Package CP 238, including the corrected performance data, within 30 days of the directive's effective date. Flight crews must be informed of the amendment, and aircraft must be operated according to the updated AFM. Incorporating a later AFM revision containing these changes is also acceptable for compliance.
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