What was found
AFTER LOADING, UNABLE TO LOCK MAIN CARGO DOOR, ONLY THE FWD CAM IS LOCKED, AFT CAM WOULD NOT MOVE. AMM: 52-32-00-5 DURING INSPECTION OF THE HOOK PIN, FOUND MISALIGNEMENT BETWEEN BOTH BEARING HOUSINGS, CAUSING POINT OF CONTACT AT WRONG LOCATION AND BLOCKING THE ROTATION OF THE AFT HOOK PIN. REINSTALLED HOOK PIN WITH SAME AMM. AFTER REINSTALLATION MEASUREMENT: AC 62.9MM (MINUS 62.74MM) AND CLEARANCE BETWEEN HOOK AND PIN FOUND AT 6.0 MM (6.35 /- 0.76). PERFORMED SEVERAL OPS TESTS WITH SUCCESS.