What was found
AFTER LANDING, THE CREW TRIED TO STOW THE THRUST REVERSER HAD A TRANSIT LIGHT ON IN THE COCKPIT. A VISUAL INSPECTION REVELED THE RIGHT THRUST REVERSER DOOR (PN C41B30212-39 SN 2287) HINGE ARM HAD BROKE BETWEEN THE LOWER HINGE BEARING AND THE DOOR. ALSO DAMAGED WERE A SUPPORT BRACKET (PNF50B583001024) AND THE RIGHT UPPER BUSHING. A NEW BRACKET WAS INSTALLED AND THE BUSHING WAS REPLACED WITH AN OVERSIZED BUSHING. A ROD BEARING AND ALL HINGE BOLTS FOR BOTH LEFT AND RIGHT DOORS WERE REPLACED. 2 OTHER CASES OF CRACKS WERE FOUND IN THE AREA OF OUT THRUST REVERSER HINGE FAILURE. THE PROBABLE CAUSE FOR FAILURE WAS FATIGUE.