Engine - Fan Wheel - Removal
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AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must remove and replace fan wheels part number 23061670 before they exceed the new life limits specified in Rolls-Royce Alert Service Bulletin AE 3007A-A-72-424/AE 3007C-A-72-327, Revision 1, dated April 20, 2017. No engine may be returned to service with a fan wheel exceeding these limits after the effective date. Compliance with this directive is required by January 31, 2018.
Summary
Federal Register Volume 82, Number 247 (December 27, 2017) - Airworthiness Directive 2017-26-06 is a final rule issued by the FAA that applies to Rolls-Royce Corporation AE 3007A and AE 3007C model turbofan engines equipped with fan wheel part number 23061670. The directive mandates the removal of affected fan wheels at newly established, lower life limits to address an unsafe condition identified through updated stress analysis.
What changed
This new airworthiness directive introduces a reduced life limit for the fan wheels installed on specified Rolls-Royce AE 3007A and AE 3007C engines, based on updated stress analysis showing higher stress levels than previously calculated. It requires operators to remove and replace fan wheels before exceeding these new life limits and prohibits returning engines to service with fan wheels exceeding the revised limits.
Why it matters
This directive is critical for aviation professionals because it prevents potential fan wheel failure, which could lead to uncontained engine damage and pose serious safety risks. Operators, maintenance organizations, and compliance teams must ensure adherence to the new life limits to maintain airworthiness and avoid costly incidents or regulatory penalties.
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