What was found
DISCREPANCY: DURING MAINTENANCE INSPECTION PER AEI SUPPLEMENT SID# 50-601 REV F, TASK AEI-FC-5-3, A CRACK WAS FOUND ON FAILSAFE ANGLE OF THE FRAME LOCATED AT STA. 480. THE CRACK STARTED ON THE FASTENER THAT ATTACH THE ANGLE TO FRAME S-17L. CORRECTIVE ACTION: USA JET MTX. AT KYIP PERFORM A HFEC INSPECTION ON ALL OPEN HOLES COMMON TO THE REPAIR PER BOEING NDT MANUAL, TRIMMED OUT EXISTING ANGLE PER AEI EO10363, FABRICATED A-2 REPAIR ANGLE FROM 0.125” 7075-0 ALUMINUM AND A -1 FILLER FROM 0.100” 7075-T6 ALUMINUM. INSTALLED -1 FILLER AND -2 REPAIR ANGLE AT BS 480 WET WITH BMS5-95 SEALANT USING HL62PB6-X HI-LOKS AND HL79-6 COLLARS ON EXITING HOLES AND HL18PB6-X HI-LOKS WITH HL70-6 COLLARS ON NEW HOLES PER SRM 51-30-2 AND AEI EO10363, APPROVED BY 8110-3 DATED MARCH 09, 2020.