As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION FOUND THAT THE LT AND RT HORIZONTAL STABILIZERS HAD BARREL NUT HOLES CORRODED WITH MISSING SEALANT. THE CORRODED BARREL NUTS AND PLI WASHERS WERE REMOVED AND REPLACED IAW MM 20-10-14. THE CORROSION WAS REMOVED AND BUSHINGS WERE INSTALLED IAW ECRA 5510-01531. THE BARREL NUT HOLES WERE RESEALED IAW MM 20-20-03.