What was found
DURING HEAVY MAINTENANCE, CORROSION STR 43L FR 54+17 INCH IN AFT CARGO COMPARTMENT, REF WO 2019-159/1, WCC 2019-185930. PERFORMED PERMANENT REPAIR AT STR 43L BTW FR 54 TO FR 56 TO AFT CARGO COMPARTMENT IAW SRM 53-00-13. REPAIR IS CATEGORY A AND NO FURTHER ACTION REQUIRED.