EASA AD 2024-0218R1-CN
CANCELLED: Engine — Gas Generator High-Pressure Turbine Blades — Replacement
Summary
EASA Airworthiness Directive Cancellation Notice 2024-0218R1-CN cancels the previous directive concerning the replacement of high-pressure turbine blades in SAFRAN ARRIUS 2F and 2R engines. These engines are commonly installed on Airbus Helicopters EC 120 B and Bell 505 helicopters. The cancellation removes the requirement for replacing certain turbine blades due to revised safety assessments.
What Changed
This cancellation notice withdraws EASA AD 2024-0218R1, which mandated replacement of affected high-pressure turbine blades due to concerns about porosity affecting mechanical strength. Further investigation showed that the porosity issue does not impact the blades' use limits or safety, eliminating the need for the previously required replacements and use restrictions.
Why It Matters
For aviation professionals, this cancellation means operators and maintenance organizations no longer need to replace or limit the use of specific turbine blades on ARRIUS 2F and 2R engines. This reduces maintenance costs and operational disruptions while ensuring compliance with current safety standards. It also clarifies that the safety risk initially identified is no longer considered an unsafe condition.
What To Do
Affected operators and maintenance teams should note that there are no longer any required actions or compliance deadlines related to the previously mandated turbine blade replacements. They should update their maintenance records and procedures accordingly and refer to SAFRAN technical representatives or EASA for any further questions.