What was found
DURING MBV INSPECTION, QA FOUND 3 CRACKED AT FASTENER HOLES ON FRAME 75, BETWEEN STRINGERS 1L & 3L. ACFT WAS REMOVED FROM SERVICE FOR MBV INSPECTION & WILL BE RETURNED TO SERVICE AFTER MBV INSPECTION. PERFORMED PERMANENT REPAIR ON CRACKED FASTENER HOLES IAW ERS-EM-53MR-1980. REPAIR MATERIALS, DOUBLER 2024T3 .080, FILLER 2024T3 .050, REPAIR ANGLE 2024T3 .063, REPAIR ANGLE FILLER 2024T3 .032.