What was found
THE REPAIR STATION REPORTED COMPLETION OF AN OVERHAUL ON AN OVERRUNNING CLUTCH ASSY, OVERHAUL RECORDS INDICATE THAT BEARING P/N 369F5457-1 WAS INSTALLED IN LIEU OF THE SPECIFIED 369F5457-3. OVERHAUL DOCUMENTATION FURTHER INDICATES THAT POST OVERHAUL RUN-IN TEST SPECIFIED BY THE APPLICABLE MAINTENANCE INSTRUCTIONS FOR THIS COMPONENT WAS NOT COMPLETED PRIOR TO RETURN TO SERVICE. THE INCOMPLETE STATUS OF THIS REQUIRED TEST WAS NOT DISCLOSED IN BLOCK 12 OF THE FORM 8130-3, & COMPONENT WAS RELEASED IN A CONFIGURATION THAT IMPLIED COMPLETION OF ALL REQUIRED OVERHAUL COMPONENTS & TEST PROCEDURES. DOCUMENTATION FURTHER INDICATES THAT THE REQUIRED POST-OVERHAUL RUN-IN TEST WAS NOT PERFORMED BY THE INSTALLER. THESE OMISSIONS WERE NOT RECORDED IN BLOCK 12 OF FAA FORM 8130-3, AND BLOCKS 8, 12, AND 14 WERE COMPLETED IN A MANNER THAT DID NOT ACCURATELY REPRESENT THE AS OVERHAULED CONDITION. THE COMPONENT WAS RETURNED TO SERVICE AND SUBSEQUENTLY EXPERIENCED AN IN-SERVICE FAILURE AT APPROXIMATELY 56 PERCENT OF ITS EXPECTED OVERHAUL INTERVAL. REVIEW OF MAINTENANCE DOCUMENTATION, OVERHAUL RECORDS, AND NTSB INVESTIGATION WPR20LA228 WHICH DETERMINED THAT THE OVERRUNNING CLUTCH OUTPUT SHAFT FAILED DUE TO FRICTIONAL OVERHEATING AT THE OUTPUT BEARING LOCATION. THIS CONDITION MAY WARRANT ADDITIONAL REVIEW OF SIMILARLY CONFIGURED COMPONENTS TO ENSURE CONTINUED OPERATIONAL SAFETY.