As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DECENT THROUGH 6000 FT MSL, ELEVATOR TRIM FROZE. BOTH MANUAL AND ELECTRIC OPERATION OF TRIM INOPERATIVE. CREW DECLARED AN EMERGENCY, DIVERTED FROM SCHEDULED DESTINATION. AIRCRAFT LANDED WITHOUT INCIDENT. WATER WAS FOUND IN BOTH MANUFACTURED LT AND RT TRIM ACTUATORS, PN 5565450-92 AND -95. ON SITE MAINTENANCE LUBRICATED TRIM ACTUATORS EXPELLING WATER AND PERFORMED OPERATIONAL CHECKS SATISFACTORY. AIRCRAFT RETURNED TO SERVICE.