As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRAPPED WATER INDICATION ON ELEVATOR UPPER SKIN PANEL HONEYCOMB CORE CELLS. LOCATED AT 6.5 IN. INBOARD FROM RIB 4 AND 4 IN. FROM TRAILING EDGE ON RH HORIZONTAL STABILIZER (1 EA) L= (L = 4 IN. W = 1.6 IN. APPROX.). REPAIRED UPPER SKIN ON RH ELEVATOR HORIZONTAL STABILIZER IAW SRM A321 55-21-11-300-004.