EASA SIB 2008-53: WITHDRAWN - FAA UPN TRANSFERRED TO EASA SUP WEBPAGE

What to do

Owners and operators of aircraft with AE2100 or AE3007 engines should review their inventories and installed parts to identify any Rolls-Royce Corporation impeller wheels with part number 23079946 and the specified serial numbers. Affected parts must not be used or installed, and further guidance can be obtained by contacting EASA's Airworthiness Directives, Safety Management & Research Section. No mandatory compliance deadline is specified.

Summary

EASA Safety Information Bulletin 2008-53 is a notification regarding Rolls-Royce Corporation engine impeller wheels with part number 23079946, which have been declared unapproved and un-airworthy due to incomplete manufacturing processes. These impeller wheels can be installed on AE2100 turboprop engines and AE3007 series turbofan engines, which power aircraft such as the Lockheed Martin C-130J, Alenia C-27J Spartan, Shin-Meiwa US-2, Cessna 750 Citation X, and Embraer EMB-135 and EMB-145 series. The bulletin aligns with the FAA's Unapproved Parts Notification 2008-S20071123008 and aims to inform European operators and owners about the issue.

What changed

This bulletin withdraws the FAA Unapproved Parts Notification and transfers the information to the EASA Safety Information Bulletin webpage. It confirms that four Rolls-Royce Corporation impeller wheels with part number 23079946 did not complete their production cycle and must be considered unapproved and un-airworthy. EASA fully supports the FAA's recommendations regarding these parts.

Why it matters

This information is critical for aviation professionals because the use of unapproved and un-airworthy impeller wheels can compromise engine safety and aircraft airworthiness. Operators, maintenance organizations, and compliance teams must be aware of the affected parts to prevent installation or continued use, thereby ensuring regulatory compliance and flight safety.