EASA AD 2024-0148
Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment
Summary
EASA Airworthiness Directive 2024-0148 is an amendment addressing the time limits and maintenance checks in the Airworthiness Limitations Section for SAFRAN Helicopter Engines ARRIUS 1A engines. These engines are commonly installed on Airbus Helicopters AS 355 N twin-engine helicopters. The directive mandates compliance with updated maintenance tasks and life limits to ensure continued airworthiness.
What Changed
This amendment supersedes previous directives DGAC France AD F-2005-063R1 and EASA AD 2008-0133, incorporating new and more restrictive maintenance tasks and life limits into the Airworthiness Limitations Section of the ARRIUS 1A Maintenance and Overhaul Manuals. It updates the Aircraft Maintenance Programme to reflect these changes and retains prior life limit requirements while introducing additional mandatory tasks.
Why It Matters
For aviation professionals, this directive ensures that maintenance and replacement tasks for ARRIUS 1A engines are up to date with the latest safety standards, reducing the risk of unsafe conditions. Operators and maintenance organizations must adhere to these updated requirements to maintain regulatory compliance and ensure the reliability and safety of affected helicopters.
What To Do
Operators must replace components before exceeding life limits and perform all applicable maintenance tasks within specified intervals starting from 13 August 2024. They must revise the 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 SAFRAN instructions or approved alternatives.