As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL PILOT REPORTED 2 OF 3 PRIMARY TRIM CIRCUIT BREAKERS POPPED. AIRCRAFT REMOVED FROM SERVICE. UPON MAINTENANCE CHECK, FOUND WIRE BUNDLE FOR PRIMARY TRIM MOTOR ARCED AGAINST FRAME. REPAIRED WIRING AT P10-399 PR1 STAB MOTOR. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.