As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STAB TRIM INOP LIGHT ILLUMINATED MANY TIMES AFTER TAKEOFF AND AUTOPILOT ENGAGEMENT. MAIN ELECTRIC STAB TRIM WAS INOP AT BOTH PILOT AND COPILOT STATION. GROUNDED - YES. DIVERSION TIME 15 MINUTES - ALL TRIM FUNCTIONS INOP, HUNG NEW MOTOR - OPS NML. REMOVED STAB TRIM MOTOR REF B737-800 AMM 27-41-71, INSTALLED SERVICEABLE STAB TRIM MOTOR REF AMM 27-41-71. ACCOMP BONDING CK, STAB MOTOR OPS CKS & LAND VERIFY TEST - ALL CKD GOOD.