As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION WAS FOUND ON THE REAR SPAR ATTACH LUGS OF THE HORIZONTAL STABILIZER. THE CORROSION WAS TO THE FORWARD AND AFT FACES OF THE FITTING AND INSIDE THE LOWER BORE. THE CORROSION WAS REMOVED, TREATED AND PAINTED PER ERA 334170-14AT HMV.