As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT HORIZONTAL STABILIZER AFT UPPER CHORD, STATION 2590, RBL 43.5 A FASTENER HOLE WAS FOUND DAMAGED DURING COA 850111. OVER-SIZED HOLE TO APPROXIMATELY 0.469 INCHES & INSTALLED BOLT WITH NUT IAW UA-EVA-72110 & FAA FORM 8100-9. (DIFFICULTY DATE SUBMITTED AS 11/10/2008)