As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 6823 HIDDEN CORROSION. AFTER REMOTION OF PREVIOUS REPAIR, CORROSION ON FLOOR STRINGER LBL 7.55 BTW STA 1320 TO STA 1340 WAS FOUND AT AFT CARGO COMPARTMENT (C2). (IN REFERENCE NRC 539). CORRECTIVE ACTION: SUMMARY NRC 00658 (UT) MEASUREMENT THICKNESS WAS ACCOMPLISHED ON FLOOR STRINGER THEREFORE AREA IS OUT OF LIMITS PER B757-200 SRM 53-00-53, FLOOR STRINGER LBL 7.55, FROM STA 1310 TO 1342 WAS REPAIR PER B757-200 SRM. (1989611)