What was found
ON C-CHECK, REMOVE NR 5 FLAP TRACK FOR INSPECTION AND REINSTALL AFTER INSPECTION IS C/W. REMOVED RIGHT I/B TRAILING EDGE FLAP IAW B-727 MM 27-51-31. REMOVED NR 5 FLAP TRACK IAW B-727 MM 27-51-31. ACCOMPLISHED VISUAL INSPECTION OF THE NR 5 FLAP TRACK IAW S/B 727-57-0178 FIG 1 REV 3, FOUND MOUNT PAD CORRODED. REMOVED 0.020 FROM A PAD SAME PAD B ORIGINAL PAD .400 TO .380. REMOVED MACHINED AND INSTALLED 3 BUSHINGS AS PER O/M 57-40-01. INSTALLED NR 5 FLAP TRACK IAW B-727 MM 27-51-31 AS PER S/B 727-57-0178. INSTALLED RT INBOARD TRAILING EDGE FLAP ASSEMBLY AS PER B-727 MM 27-51-1. OPS CHECK OK PER B-727 MM 27-51-0.