What was found
INVESTIGATED PILOT REPORT OF MLG DOORS NOT CLOSING INDICATION FOLLOWING GEAR RETRACTION. FOUND RUBBER BUMPER MISSING FROM LT MAIN GEAR UPLOCK DAMPER ASSY, LT MAIN GEAR UPLOCK DAMPER ASSY CAUSING LT MN GEAR UPLOCK HOOK NOT TO RESET AND ENGAGE ROLLER FOLLOWING GEAR RETRACTION DUE TO EXCESSIVE UP-TRAVEL OF LT MAIN GEAR. REPLACED LT MAIN GEAR UPLOCK DAMPER WITH SERVICEABLE, SUPERSEDING PN 3908141010013 DAMPER ASSY. LANDING GEAR RETRACTION/ EXTENSION OPERATIONS NORMAL.