As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: CORROSION TRAILING EDGE TOP SKIN LOWER SURFACE BETWEEN RIB 16 (PLUS 15 INCHES) TO RIB 17 ON LH WING; (RESOLVED ON W/O: 1389906 TASKCARD: NR-00057) TASK CARD 572179-01-1-575 JB WO# 1389906 PERFORMED REPAIR LOCATED TRAILING EDGE TOP SKIN LOWER SURFACE RIB 16 PLUS 15 INCHES IAW EA 57-0046-25 MX 220 C.W.