As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HORIZONTAL STABILIZER TRIM CONTOL UNIT FLAGGING MOTOR NR 1 DURING CLIMBOUT. THE CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, R & R THE STAB TRIM MOTOR CONTROL UNIT AND PERFORMED CHECKS IAW THE AMM. THE ACFT WAS RELEASE FOR SERVICE.