As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DAMAGE LED TO A 0.500" OVERSIZED WING SKIN HOLE AND A 0.310" OVERSIZED STRINGER U-9.5 HOLE AT A COMMON FASTENER LOCATION JUST INBD OF WING STATION 537 (3RD NEW FASTENER FROM RIB NR 17). REPAIR CONSISTED OF A COUNTERSUNK FREEZE PLUG AND AN OVERSIZED FASTENER. THIS REPAIR RELATES TO THE APB BLENDED WINGLET PROGRAM MODIFICATION AND INSTALLATION.