What was found
DURING C-17 CHECK 9 EACH CRACKS WERE FOUND ON LOWER ROW OF FASTENERS OF LAP SEAM AT BS 492 - BS 502, STR 4 RT. MAINTENANCE REMOVED FASTENERS AT STR 4 RT BETWEEN BS 485 AND BS 508; CUTOUT DAMAGED AREA OF FUSELAGE SKIN FROM BS 487.5 TO BS 506.5; FABRICATED 3 EACH FILLERS, AND 4 EACH DOUBLERS; INSTALLED REPAIR PARTS IAW B737-300 SRM 53-00-01, PG. 362, FIG. 228.