As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CHECK-C MAINT FOUND CORROSION IN MEMBRANE BETWEEN STA 845 AND 964 AT LONGERON 18L. CUT OUT CORRODED PIECE FROM MEMBRANE STA 845 TO 855 APROXIMATELY. TREATED REPAIR PARTS AND AREA PER SRM 51-10-3 PAGE 54. REPAIRED DAMAGED AREA PER SRM 51-70-4.