What was found
DURING C-17 CHECK EXFOLIATION CORROSION AND A 1 INCH CRACK WAS FOUND ON SEAT TRACK BS 420 TO BS 425, RBL 45. MAINTENANCE REMOVED DAMAGED SECTION OF SEAT TRACK FROM BS 380 TO BS 480, RBL 45; FABRICATED A NEW REPLACEMENT SECTION OF SEAT TRACK PER DWG 65-46813; INSTALLED REPAIR PART IAW B737-300 SRM 53-30-52, FIG. 1.