EASA 2019-0247-E (Emergency)

Requires replacement of the 26-tooth bevel gear (P/N 0-298-11-010-0 and applying to specific serial numbers) with a serviceable part. This AD also prohibits installation or reinstallation of affected parts. Prompted by a report of an in-flight engine shutdown. Subsequent investigations identified the rupture of several teeth of the Module 01 bevel gear due to fatigue propagation. According to EASA, a quality issue during manufacturing has been determined to be the root cause and investigators subsequently identified the batch of affected parts.