What was found
WHILE IN HEAVY CHECK. CORROSION AS MARKED ON AFT CARGO THRESHOLD CLOSE OUT PANEL. REPLACED CLOSE OUT PANEL WITH NEW REF AMM 20-10-01, P/N 170-67451-001.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN HEAVY CHECK. CORROSION AS MARKED ON AFT CARGO THRESHOLD CLOSE OUT PANEL. REPLACED CLOSE OUT PANEL WITH NEW REF AMM 20-10-01, P/N 170-67451-001.