As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PSV IN MSP, 2EA ELONGATED HOLES WERE FOUND ON THE LT SIDE OF THE VERTICAL STABILIZER LOWER FIXED SKIN JUST BELOW ZFS=52, COMMON TO LT SPAR CHORD. THE HOLES WILL BE OPENED IN THE FIXED L/E SKIN TO A MAX SIZE OF 0.327 DIA AND A BUSHING/DOUBLER REPAIR INSTALLED TO RESTORE THE NOMINAL HOLE SIZE PER ER/A 502542-14 AD.