As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE VISIT AT TIMCO, FOUND AFT CARGO COMPARTMENT STR 19L CORRODED AT FS 767. FABRICATED REPAIR CHANNEL AND ANGLE IAW B737 SRM 53-10-3. INSTALLED REPAIR IAW SRM 53-30-0, AND FINISHED IAW SRM 51-10-2. AIRCRAFT RETURNED TO SERVICE. MATERIAL I.D. .063 INCH 7075-0 REPAIR CHANNEL AND ANGLE. TIMCO NON-ROUTINE CARD NR 28435. (X)