What was found
CORROSION ON COUNTERSINKS AT FUEL TANK ACCESS 620DT, SM. CORROSION WAS REMOVED, REWORKED AREAS WERE MEASURED. IT IS OUT OF LIMITS IAW SRM 51-10-01. FUEL ACCESS WAS REPLACED AND PN VERIFIED IAW AIPC 57-22-01 AND MUST BE INSTALLED WITH CARD 2040-0012, ZONE 620. JOB 001-028I, FOUND 11 HOLES OUT OF LIMITS, MAXIMUM DIAMETER ALLOWABLE IS .660" AND MAXIMUM DIAMETER MEASURED IS .679".