As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE PITCH TRIM CB FOUND POPPED UPON LANDING. THE STAB TRIM RELAY K161E2 WAS FOUND TO BE INOPERATIVE. REMOVED BOTH STAB TRIM RELAYS K161E2 AND K161D2, AND INSTALLED NEW RELAYS. THE HORIZONTAL PITCH TRIM SYS OPERATIONALLY CHECKED GOOD. ALL WORK ACCONPLISHED IAW AMM 12-B-27-40-00-00A-903A-A AND WDM 91-10-01.