What was found
LCQ - MAJOR REPAIR - DURING C-15 CHECK CORROSION WAS FOUND ON FLOOR SUPPORT BEAM AND NUTPLATES IN THE AFT CARGO COMPARTMENT AT BS 727+6, LBL 2.5. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS BEYOND LIMITS IAW B737 300 SRM 53-60-53, FIG 101, SHT 8. FABRICATED 2 EACH REPAIR ANGLES FROM 7075-0-.071, 7075-0-.081, HEAT TREATED AND PRIMED, AND INSTALLED REPAIR PARTS AT BS 727+6, LBL 2.5 IAW B737-300 SRM 53-00-53, FIG. 201, PG. 203.