EASA AD 2025-0123
Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment
Summary
EASA Airworthiness Directive 2025-0123 is an amendment concerning the time limits and maintenance checks detailed in the Airworthiness Limitations Section for Dassault Aviation Mystère-Falcon 20-( )5 series aeroplanes. This directive applies to all certified models and serial numbers except those with the Supplemental Structural Inspection Program embodied via Service Bulletin 730. It mandates compliance with updated maintenance tasks and life limits as specified in the latest Airworthiness Limitations Section of the Dassault Mystère-Falcon 20 Maintenance Manual.
What Changed
EASA Airworthiness Directive 2025-0123 supersedes the previous AD 2023-0058 and introduces new and/or more restrictive maintenance tasks and life limits in the Airworthiness Limitations Section Revision 15. These changes include reduced thresholds or intervals for certain tasks and components, reflecting updated safety requirements. Operators must now follow the revised maintenance manual chapter 5-40-00 (DMD 42937) to ensure compliance.
Why It Matters
This directive is critical for maintaining the continuing airworthiness and safety of Dassault Mystère-Falcon 20-( )5 series aeroplanes. Failure to comply with the updated maintenance tasks and life limits could lead to unsafe conditions. Aviation professionals, including operators and maintenance organizations, must update their maintenance programs to reflect these changes to avoid regulatory non-compliance and potential safety risks.
What To Do
Affected operators must replace components before exceeding their new life limits and perform all maintenance tasks within the revised thresholds and intervals starting from 11 June 2025. They must revise their approved Aircraft Maintenance Programme within 12 months of the effective date to incorporate the updated Airworthiness Limitations Section. Any discrepancies found during maintenance must be corrected before the next flight, following Dassault's approved instructions.