What was found
AFTER THE AIRCRAFT HAD BEEN LEFT OUT IN THE RAIN, THE PREVIOUS DAY, THE AC WAS FLOWN. UPON HAND FLYING THE AIRCRAFT TO ALTITUDE, THE PILOT REPORTED THA THE TRIM WHEEL BECAME INCREASINGLY MORE DIFFICULT TO MOVE AS HE ENTERED FREEZING LEVELS. AT OAT -8 THE TRIM WHEEL HAD BECOME COMPLETELY FROZEN. AFTER THE AC HAD TO BE FORCED NOSE OVER, AT OAT +2, THE TRIM WHEEL UNFROZE AND WAS ABLE TO BE TRIMED NORMALLY. (K)