As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO COMPARTMENT Z CHANNEL BETWEEN STA. 727E AND 727 L/H HAS EXFOLIATION CORROSSION<[01] AFT CARGO COMPARTMENT Z CHANNEL BETWEEN STA. 727E AND 727 L/H HAS EXFOLIATION CORROSSION; FOUND OUT OF LIMITS AS PER SRM 53-00-53-1A-2. Z CHANNEL WILL BE REPLACED ON TASK CARD TTG8Q00LNZB8;[02] VERIFIED STEP 1