What was found
STAB TRIM INOPERATIVE. UNABLE TO ENGAGE AUTOPILOT. REPLACED STAB TRIM CONTROL RELAY, R64 IN J4 JUNCTION BOX. OPERATED GROUND TEST OFTHE SYSTEM, GROUND TEST PASSED AND CHECKED OK IAW TASK 27-41-71-700-801.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM INOPERATIVE. UNABLE TO ENGAGE AUTOPILOT. REPLACED STAB TRIM CONTROL RELAY, R64 IN J4 JUNCTION BOX. OPERATED GROUND TEST OFTHE SYSTEM, GROUND TEST PASSED AND CHECKED OK IAW TASK 27-41-71-700-801.