As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - ELEVATOR TRIM WHEEL REPORTED DIFFICULT TO MOVE MANUALLY. ELECTRIC TRIM FUNCTIONS NORMALLY. MAINTENANCE INSPECTED AND LUBED BOTH ELEVATOR TRIM ACTUATORS. OPERATIONAL CHECK OF ELEVATOR TRIM SYSTEM GOOD. AIRCRAFT RETURNED TO SERVICE. (X)