As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE VISIT: TRAPPED WATER INDICATION ON ELEVATOR UPPER SKIN PANEL HONEYCOMB CORE CELLS. LOCATED AT 7.5 IN. INBOARD FROM RIB 4 AND 5.3 IN. FROM TRAILING EDGE ON LH HORIZONTAL STABILIZER (1 EA) (L = 2.7 IN. W = 1.6 IN. APPROX.). REPAIRED UPPER SKIN LH ELEVATOR HORIZONTAL STABILIZER IAW A321 SRM 55-21-11-300-004.