What was found
CENTER WING FUEL PANEL 522CT HAS CORROSION ON NUMEROUS COUNTERSINK LOCATIONS. REMOVED CORROSION FROM COUNTERSINKS ON CENTER WING FUEL PANEL 522CT REF SRM 57-10-35, REPAIR -03, PG 202-203, PROCEDURE 6A, STEP 1-2. PERFORMED E/T INSP OF PANEL 522CT COUNTERSINK HOLES IAW NDTM 51-00-06. NO DEFECTS NOTED. MEASURED DIAMETER OF REWORKED COUNTERSINKS OF .650 MAX AND FASTENER HEAD MEASURED .011 BELOW FLUSH. REWORK COUNTERSINKS ARE WITHIN LIMITS REF SRM 57-10-35. APPLIED ALODINE ON COUNTERSINK HOLES ON PANEL 522CT REF AMM TASK 51-25-16-390-801.