As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRAPPED WATER INDICATION ON RUDDER LEFT SHELL HONEYCOMB CORE CELL LOCATED BETWEEN BR 6 TO BR 7, 3.40 INCHES FROM BR 6, AND 16 INCHES FROM TRAILING EDGE VERTICAL STABILIZER AROUND HOISTING POINT NR 3 UPPER POSITION. REPAIRED THE LEFT RUDDER SKIN IAW EA 277765.