As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT, ATTEMPTED TO ACTUATE PITCH- TRIM WHEEL VIA ELECTRIC SWITCHES, AND FOUND NO MOVEMENT. TRIED BOTH FO'S (RIGHT) AND CAPTAINS (LEFT) SWITCHES, STILL NO MOVEMENT. GROUNDED - YES. FOUND STABILIZER CONTROL CABLE BROKEN. INIT MIG-2C 40-0009409, REF L/P 11776961 FOR HORIZ STAB ACTUATOR CHANGE. REMOVED AND REPLACED THE HORIZONTAL STAB TRIM CONTROL CABLES REF B737-900 AMM 27-41-82/401, ALL ASSOCIATED OPS TESTS PASS AND TRIM SWITCHES OPERATE NORMALLY.