What was found
DISCREPANCY: WHILE INCREASING MTOGW (SB 57-20) DISCREPANCY WAS FOUND THAT THE PL1-20-1336 WASHER AND PL1-16-1336 WASHERS ON THE UPPER AND LOWER BOLTS (81139-20-99 AND 81139-16-99) HAD BEEN INCORRECTLY INSTALLED PER MM 20-20-01, FIG 201. (ALSO DPS 1.336). PER FIG 201, WASHER INDEX NR 5 BELONGS BEFORE AND AFTER PL1 WASHER WHERE INSTALLED, IN THIS CASE, WASHERS WERE INSTALLED BOTH AFTER PL1 WASHER JUST BEFORE NUT INSTALLED. CORRECTIVE ACTION: BOLTS REMOVED FOR NDT TESTING AND CHECKED GOOD. WASHERS REPLACED AND VERIFIED FOR CORRECT INSTALLATION.