As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CHECK-C MAINT IN THE AFT CARGO COMPT, CORROSION WAS ON UNDERSIDE OF FLOOR MEMBRANE AT STA 1041 TO 1060 RT SIDE, STA 1060 TO 1079, AND STA 1079 TO 1098. REMOVED AND REPLACED MEMBRANES PER DRAWING 9930612-25 AND SPM 6-70-14A AND B.