As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS IN BASE MAINTENANCE. TRAPPED WATER INDICATION IN MULTIPLE AREAS ON ELEVATOR HONEYCOMB CORE STRUCTURE LOWER PANEL LOCATED BETWEEN 8 AND 70 INCHES INBOARD OF RIB 10 , AND 3.5 INCH FROM THE TRAILING EDGE ON THE RT HORIZONTAL STABILIZER. REPLACED ELEVATOR J/C 26L30027001.