As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TYS A/C EN ROUTE TO INT WHEN THE BACKUP PITCH TRIM BECAME INOP. CREW DIVERTED FLIGHT TO TYS WHERE MAINTENANCE UNSTUCK THE SWITCH, CLEANED AND RELAMPED THE CUTOUT SWITCH. OPS CHECK GOOD AND WAS RELEASED BACK TO SERVICE IAW EMB 145 AMM 27-40-04.