As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION WAS FOUND ON RH HORIZONTAL STABILIZER UPPER SKIN BARREL NUT HOLES NR 3 AND 26 AT HSS XH =27. THE REPAIR FOR BARREL NUT HOLE 3 WAS PERFORMED IAW ER/A 551695-14 REV ORIG. AND FOR BARREL NUT HOLES 26 WAS PERFORMED IAW ER/A 551696-14 REV ORIG.