(The following starter defect description is from a mechanic whose geographic location is entirely different from the previous two submitters.)

“The drive gear on the bendix drive shattered. This also caused severe damage to the teeth on the ring gear, rendering the ring gear unserviceable. We’ve had two previous problems with the bendix on new starters. These (problems) are related to the drive not engaging or disengaging properly....” The submitter speculates these issues may be related to a “...materials defect” in the part(s).

(This starter was mounted on a Lycoming 0320 under the hood of a Cessna 172P. Part condition is listed as “destroyed” SDRS records four additional Bendix failures for this part number.)

Part Total Time: 124.9 hours.