As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION FOUND CORROSION WEB - INTERCOSTAL LOCATED BTW BS 927 TO BS 947.5 AT LEVEL S-21R AT AFT CARGO COMPARTMENT. REPLACED WEB INTERCOSTAL LOCATED BTW BS 927 TO BS 947.5 AT LEVEL STR.21R AFT CARGO COMPARTMET AS PER B737-800 SRM 51-10-02 ITEM 9 SRM 51-40-02 DWG 147A8801.