As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STAB TRIM WILL NOT OPERATE (PILOT OR COPILOTS) USING STAB TRIM CH-2. REMOVED AND REPLACED MOTOR CONTROL UNIT. REMOVED AND REPLACED HORIZONTAL STABILIZER ACTUATOR, REF MM 27-42-61, 27-42-05. OPS CHECK GOOD ON BOTH CHANNELS. MEETS CAT II STANDARDS. CONTROL UNIT (P/N: 7062-3) (S/N ON: 329) (S/N OFF: 215). ACTUATOR (P/N: 8396-3) (S/N ON: 177) (S/N OFF: 281).