What was found
CORROSION ON COUNTERSINK AND SETTLEMENT AREA OF WING ACCESS PLATE 1377C. CORROSION WAS REMOVED, MEASURED SETTLEMENT AREA WAS ACCOMPLISHED, ORIGINAL THICKNESS IS .150" REMAINING THICKNESS IS .140", THEREFORE IS WITHIN LIMITS, COUNTERSINKS WERE MEASURED AND MAXIMUM DIAMETER ALLOWABLE IS .532" AND WAS FOUND COUNTERSINK OUT OF LIMITS MEASURED .550" THEREFORE HOLE AND COUNTERSINK WERE REWORKED AND MEASURED WITH 1D .320" COUNTERSINK .609" AND BUSHING WAS FABRICATED OD .331" COUNTERSINK .512", AREAS AND BUSHING WERE TREATED AND BUSHING WAS INSTALLED IAW SRM 51-22-2A COND II AND 51-10-3.