What was found
DURING C-18 CHECK, A 3/4 INCH CRACK WAS FOUND IN R-1 DOOR CUTOUT AFT UPPER REVEAL BS 315 TO BS 328, STR 8 RT. MAINTENANCE REMOVED CRACKED R-1 DOOR CUTOUT AFT UPPER REVEAL; FABRICATED A NEW REPLACEMENT REVEAL; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, FIG 1 & 8.