What was found
DURING BASIC CHECK, INSPECTION DISCOVERED MIGRATING BUSHINGS PN 171-12123-001 & 171-12122-001 ON THE WING STUB FITTING IN SPAR III AT Y=1118 & -1118. THESE BUSHINGS WERE INSTALLED IAW EO E17X-57MA-004 IAW SB 170-57-0038. VT-SAA REQUESTED A REPAIR & RECEIVED ETD 2015-170-090114 WHICH PROVIDES A PERMANENT REPAIR BY REMOVING THE MIGRATING BUSHINGS, OVERSIZING THE SPAR 3 HOLES & INSTALLING OVERSIZED BUSHINGS. THE FINAL REAM HOLE SIZES AFTER REMOVING THE DAMAGE ARE AS FOLLOWS, LT SIDE .4065 INCH & RT SIDE .4069 INCH. THIS PERMANENT REPAIR IS NOT A MAJOR ALTERATION, BUT USING THE SAME NUMBERING CONVENTION FOR TRACKING PURPOSES. ENGINEERING HAS CLASSIFIED THIS REPAIR AS A MAJOR REPAIR. THIS STRUCTURE IS PSE & FCS & REQUIRES FOLLOW UP INSPECTIONS. E17X-57MA-004.17 WILL BE ISSUED TO ACCOMPLISH FOLLOW UP INSPECTIONS IAW ETD 2015-170-090114 ANAC DER FORM ATTACHED. TASK 57-01-008-0003, EXTERNAL DET THRESHOLD OF 33,000 FC, INTERVAL OF 16,900 FC IS SUFFICIENT & IS MET USING THE INSPECTION REQUIREMENTS MPG & MRBR REVISION 11. THRESHOLD IS COUNTED SINCE NEW. POST MOD SB170-57-0038. ACCOMPLISHMENT OF THIS MAJOR REPAIR WAS ON EO E17X-57MA-004.16 UNDER WO 1966211.