As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IMPROPER INSTALLATION OF CLUTCH PAWL SPRING RETAINING RIVETS DURING LAST MAINT., RESULTED IN CLUTCH FAILURE AND DAMAGE TO ENGINE STARTER. NEW TOOLING, ASSEMBLY AND INSPECTION PRACTICES WILL BE IMPLEMENTED TO PREVENT RECURRENCE, FIELD EVALUATION OF OTHER POSSIBLE UNIT AFFECTED.