EASA AD 2025-0256
Wings — Centre Wing Box Frame 47 Angle Fittings — Inspection / Modification
Summary
EASA Airworthiness Directive 2025-0256 addresses inspection and modification requirements for the centre wing box frame 47 angle fittings on Airbus A300 F4-608ST aeroplanes. It mandates specific inspections and modifications to detect and correct cracks that could compromise the structural integrity of the aircraft's centre wing box. The directive applies to all manufacturer serial numbers of the A300 F4-608ST model.
What Changed
This new directive introduces updated inspection thresholds and intervals for post-modification 19746 aeroplanes, reflecting changes in mass and range assumptions. It partially takes over requirements from EASA AD 2018-0229 for A300-600ST aeroplanes and removes these aeroplanes from that AD's applicability. Additionally, it mandates a cold expansion modification for MSN 001 before specified flight cycles or hours.
Why It Matters
The directive is critical for maintaining the structural integrity of the Airbus A300 F4-608ST by ensuring timely detection and correction of cracks in the centre wing box frame 47 angle fittings. Compliance helps operators and maintenance organizations prevent potential structural failures, ensuring continued airworthiness and safety. It also updates inspection programs to reflect current operational conditions, aiding compliance teams in meeting regulatory requirements.
What To Do
Operators must perform high frequency eddy current and ultrasonic inspections of specified angle fitting holes and the aft bottom panel within defined thresholds or grace periods, then repeat at specified intervals. For MSN 001, a cold expansion modification must be completed before exceeding 15,100 flight cycles or 38,900 flight hours. Any crack findings require immediate corrective action before next flight, and all inspection results must be reported to Airbus within 30 days.