As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - INFLIGHT LAX-ORD. CREW REPORTED ON CLIMB OUT STAB TRIM WOULD NOT OPERATE IN SLOW MODE WITH FLAPS UP. THE FIRST OFFICER COULD NOT CONTROL STAB TRIM WITH THE YOKE SWITCHES AND CAPTAIN COULD NOT OPERATE TRIM WITH HIS SWITCHES. EMERGENCY DECLARED FLIGHT DIVERTED LAS LANDED WITHOUT INCIDENT. REPLACED "A" FLIGHT CONTROL COMPUTER THAT HAD FAULTED. SYSTEM GROUND CHECK NORMAL OPERATION.