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 ON ELEVATOR AT HONEYCOMB CORE STRUCTURE UPPER SKIN PANEL LOCATED 8.750 INCH INBOARD FROM ELEVATOR RIB 4 AND 4 INCH FROM TRAILING EDGE ON LEFT HAND HORIZONTAL STABILIZER. REPAIRED LEFT HAND ELEVATOR PER SRM 55-21-11-300-005.