As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE COMPLYING WITH S/B 601R-53-050 INSTALLATION OF AN EXTERNAL REINFORCING STRAP FOUND FOUR HOLES BIRLLED THROUGH THE SKIN AND FRAME AT FS 409 AND 128 BETWEEN STRINGER 24L AND 24R ARE OBLONG AND REQUIRES OVERSIZING TO COMPLETE THE REPAIR. OVERSIZED 4 DISCREPANT HOLES TO .249S AND INSTALLED HST 412 4G AND IAW WVAC EO 601R-53-0883.