What was found
FLIGHT CREW REPORTED AN UNLOCKED LANDING GEAR/DOOR INDICATION FOLLOWING GEAR RETRACTION AFTER DEPARTURE. LANDING GEAR WAS CYCLED AND INDICATIONS WERE NORMAL FOLLOWING RETRACTION. NO UNUSUAL NOISE/BUFFETING, NOTED DURING CRUISE FLIGHT. UPON ARRIVAL NOTED THE LT WHEEL WELL (INBD) DOOR SAGGING OPEN AT THE AFT END. FOUND THE BRACKET (800XP IPC 32-10-00-10 NR 215) ATTACHING THE WHEEL WELL DOOR AFT SUPPORT ASSY (800XP IPC 32-10-00-10 NR 185) CRACKED ACROSS THE MOUNTING LUGS FOR THE PN 25FC5805 AFT SUPPORT ASSY. ATTACH BOLT (800XP IPC 32-10-00-10 NO. 180). 1 (OF 4) MOUNTING LUG SHOWS POSSIBLE EVIDENCE OF PRE-EXISTING CRACK APPROX HALFWAY THROUGH LUG. FAILURE MODE UNKOWN, POSSIBLY CAUSED BY DOOR MISRIGGING OR FATIGUE. RECOMMEND MFG INVESTIGATE WHETHER A RELATIVELY ISOLATED INCIDENT OR IF MORE FREQUENT OR MORE DETAILED INSPECTIONS ARE WARRANTED.