What was found
DURING C-13 CHECK 3 EACH 1 INCH CRACKS WERE FOUND ON BS 178 BULKHEAD WEB AT LBL 5, WL 200.5 - 201, WL 197.75 - 198.5, AND LBL 6.25, WL 200.3 - 201. MAINTENANCE STOP DRILLED CRACKS AT LBL 5, WL 200.5 - 201, WL 197.75 - 198.5, AND LBL 6.25, WL 200.3 - 201; PERFORMED HFEC INSPECTION OF STOP DRILL HOLES TO VERIFY CRACKS ARE CONTAINED; FABRICATED REPAIR DOUBLER; INSTALLED REPAIR PART IAW B737-300 SRM 53-10-08 FIG 210.