As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PUSHROD MARKED AS 73806# FAILED AT END OF PUSHROD. LYCOMING MANDATORY SB OA-522 IN CONJUNCTION WITH AD 95-03-10, WAS ACCOMPLISHED 2-16-95. NO DEFECTS IN ENGINE VALVE TRAIN OR VALVES STICKING WERE NOTED. PARTS WERE REPLACED AND ENGINE RAN OK AND RETURNED TO SERVICE. THE POUND SIGN (*) HAD BEEN HAND ENGRAVED NEXT TO STAMPED P/N 73806, WAS ONLY UNUSUAL THING NOTED. NO OTHER MARKINGS WERE FOUND.