As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-05 CHECK CORROSION WAS FOUND ON AFT SIDE OF AFT LOWER FUSELAGE FRAME AT BS 986.5, STR 25 RT. MAINTENANCE CUT OUT CORRODED AREA OF AFT LOWER FUSELAGE FRAME AT BS 986.5, STR 25 RT; FABRICATED A FILLER AND DOUBLER; INSTALLED REPAIR PARTS IAW B737-300 SRM 53-00-07 FIG 206.