What was found
MAJOR REPAIR - DURING C-16 CHECK 5 EACH CRACKS WERE FOUND ON BS 178 BULKHEAD WEB AT WL 218 LBL 12, WL 212 LBL 5.7, WL 198 LBL 5.0, WL 198 LBL 62, AND WL 201 LBL 6.2. MAINTENANCE PERFORMED NDT INSPECTION ON BS 178 BULKHEAD WEB AT WL 218 LBL 12, WL 212 LBL 5.7, WL 198 LBL 5.0, WL 198 LBL 62, AND WL 201 LBL 6.2; CONFIRMED WL 198 LBL 62, AND WL 201 LBL 6.2 WERE NOT CRACKED; MARKED END POINTS AND STOP DRILLED WEB AT WL 218 LBL 12, WL 212 LBL 5.7, AND WL 198 LBL 5.0; PERFORMED NDT INSPECTION TO VERIFY CRACKS CONTAINED; FABRICATED REPAIR DOUBLER AND FILLER; INSTALLED REPAIR PARTS IAW B737-300 SRM 53-10-08, FIG. 210, PG. 285, AND SRM 51-40-02, PG. 6.