As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRI STAB TRIM FAIL EICAS AMBER MESSAGE IN FLIGHT. PERFORMED THE APPROPRIATE QRH CHECKLIST, FOLLOWED BY THE EMERGENCY/ABNORMAL PROCEDURES, FLAPS NOT IN LANDING POSITION // SIGNOFF // REMOVED THE PRIMARY STAB TRIM ACTUATOR AND INSTALL A NEW SERVCEABLE PRIMARY STAB TRIM ACTUATOR ACCOMPLISHED FOLLOW ON CHECKS AS REQUIRED OPERATIONAL CHECKS GOOD. CLOSED ACCESS AS REQUIRED MAINTENANCE ACOMPLISHED IAW AMM CH. 27-40-05 AND 27-40-00.