As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION OF CORROSION TASK 58-53301 WHILE AIRCRAFT WAS IN C-CHECK, LEVEL 2 CORROSION WAS FOUND ON A FLOOR CHANNEL AT FUSELAGE STATION 776 LBL 33. THE CHANNEL WAS REPAIRED IAW KITTY HAWK EA D9-53-051. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)