As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTURE ELECTRIC TRIM INOP ON BOTH CONTROL COLUMNS. ENGAGED AUTOPILOT PER QRH & STAB OUT OF TRIM LIGHT ILLUMINATED. GROUNDED - YES. AIR TURNBACK. DIVERSION TIME 51 MINUTES - VERIFIED DEFECT, ACCOMPLISHED FIM 27-41 TASK 804 VERIFIED 115VAC ON D700 PINS 1,2 AND 3 TO PIN 10. REMOVED AND REPLACED STAB TRIM MOTOR REF AMM 27-41-71. ALL GND TESTS PASS.