What was found
CORROSION ON COUNTERSINK ON FUEL ACCESS PLATE 620CB, NRC 00624. CORROSION WAS REMOVED IAW SRM 51-10-04, PAR 26. COUNTERSINK AREAS WERE MEASURED MAXIMUM COUNTERSINK DIAMETER, ALLOWABLE DOOR, PN ARB0975, IS 0.532" MAXIMUM DIAMETER MEASURED IS 0.610. THEREFORE IS OUT OF SERVICE DUE TO EXCESSIVE DAMAGE IN 3 AREAS. COUNTERSINK ADJACENT, THEREFORE IS OUT OF LIMITS IAW SRM 57-10-01 CONDITION II AND FUEL ACCESS WAS REPLACED AND PN VERIFIED IAW IPC 57-23-01.