What was found
(AUS) NO2 ENGINE UPPER AFT MOUNT FITTING BOLTS AND BUSHES WORN - APPROXIMATE AMOUNT OF VERTICAL MOVEMENT WAS 0.060IN DURING INVESTIGATION THE FOLLOWING OTHER PROBLEMS WERE FOUND: 1. BOTH AFT FITTING ATTACHMENT BOLTS PNO 65B90383-2 WERE EXCESSIVELY WORN AND STEPPED 2. BUSHINGS IN THE REAR ENGINE UPPER FITTING PNO 65B90356-35 (4 OFF) AND PNO 65B90356-36 (2 OFF) WERE WORN FOUND DURING INSPECTION AIW ER B747-71-20-4 FOLLOWING ENGINE REMOVAL