As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY CHECK - MAJOR - WHILE PERFORMING 170EO-57-10-0017 F52 REINF & RR AILERON TORQUE TUBE SUPPORT MOD, REMOVED PREVIOUSLY UPSIZED FASTENER AND FOUND DAMAGE TO INSIDE OF HOLE. PERFORMED TEMPORARY REPAIR BY REAMING FASTENER HOLE AND FABRICATING AND INSTALLING BUSHINGS ON LOWER WING STUB SKIN IN ACCORDANCE WITH, REF ETD2021-170-015726-A.