What was found
THE FLT CREW, FOUND THE ELEVATOR AND RUDDER TRIM TABS FROZEN WHEN THEY LEVELED OFF AT CRUSING ALTITUDE, WHEN THE AIRCRAFT LANDED THE FREEZING ELEVATOR AND RUDDER TRIM TABS WERE WRITTEN UP. MAINTENANCE LUBED THE ELEVATOR AND RUDDER TRIM TAB ACTUATORS, OPS CHECKED GOOD MANUALLY AND ELECTRICALLY. AFTER SUBSEQUENT FLIGHTS NO OTHER PROBLEMS WERE NOTED. (M)