As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STARTER DRIVE WAS OVERHAULED BY A CERTIFIED REPAIR STATION. (PN S539800M30) STARTER ADAPTER SPRINGS WERE INSTALLED IAW STC DURING THE OVERHAUL. THE STARTER WAS INSTALLED ON THIS ENGINE AND WAS OPERATED FOR 4.06 HOURS (5 STARTS) BEFORE IT FAILED. AN INSPECTION OF THE STARTER DRIVE ADAPTER FOUND THE STARTER ADAPTER SPRING WAS BROKEN AND DEFORMED. THE INTERNAL PARTS WERE DISCOLORED, AND THERE WERE METAL SHAVINGS FOUND IN THE OIL. (K)