As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL CORROSION POINTS ON CENTER WING UPPER SKIN PLATE BTW Y=660 AND Y=756, BTW X=22 AND X=26, ALSO ON Y=750 BTW X=22 AND X=44. CORROSION LEVEL 2. CENTER WING UPPER SKIN PLATE WAS REPAIRED (AS-IS CONDITION) PER ER/A 560894-14 REV ORIGINAL AND ETI-17-17-151 REV 1 AND AREA WITHIN LIMITS WAS ATTENDED WITH NRC 577.