As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE. TRAPPED WATER INDICATED ON RUDDER LEFT HAND SIDE PANEL AROUND UPPER HOIST POINT AT LEVEL OF TRAILING EDGE FASTENER 20 ON VERTICAL STABILIZER. REPAIRED RUDDER LEFT SIDE PANEL AROUND UPPER HOIST POINT AT LEVEL OF TRAILING EDGE FASTENER 20 ON VERTICAL STABILIZER PER EA 275234.