As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK CORROSION WAS FOUND ON LOWER SKIN AT FRAME 31. CORROSION WAS REMOVED IAW SRM 51-21-58 AND FOUND TO BE OUT OF LIMITS. REPAIRED IAW STS ENGINEERING SOLUTIONS EA 12-2011-018. REPAIR PERFORMED BY TECH SERVICE (MRO) UNDER W/O 17010.