What was found
OIL ANALYSIS, FINDING AN INCREASE IN METAL CONTAMINATION, INVESTIGATION REVEALED THE ACCESSORY DRIVE GEARBOX DRIVESHAFT LOCK ASSY POST SB ALF502L 72-0175, HAD DROPPED DOWN ONTO THE STARTER DRIVESHAFT MACHINING AWAY AT THE DRIVESHAFT WHICH CAUSED THE REPLACEMENT OF THE FOLLOWING COMPONENTS: ACCESSORY DRIVE GEARBOX MODULE, FUEL/OIL HEAT EXCHANGER, THE ENGINE DRIVEN OIL PUMP ASSY AND THE NR 12 BEARING. SUSPECT CAUSED BY FAILURE OF THE DRIVESHAFT LOCK PIN (PN 2-083-126-04). RECOMMEND ASAP (ESPECIALLY IF NOT ON ACTIVE OIL ANALYSIS PROGRAM) TO REMOVE ACCESSORY DRIVE GEARBOX DRIVESHAFT LOCK ASSY AND INSPECT DRIVESHAFT LOCK PIN (PN 2-083-126-04) FOR BEING ANYTHING LESS THAN STRAIGHT WITH EVENLY CUT ENDS.