What was found
STAB TRIM CH 1 WILL NOT STAY ENGAGED. REMOVED AND REPLACED STAB TRIM ACTUATOR IAW MM 27-42-01. REMOVED AND REPLACED STAB TRIM MCU IAW MM 27-42-05. OPS CHECK GOOD. STAB TRIM ACTUATOR P/N: 8396-3, S/N OFF: 816.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM CH 1 WILL NOT STAY ENGAGED. REMOVED AND REPLACED STAB TRIM ACTUATOR IAW MM 27-42-01. REMOVED AND REPLACED STAB TRIM MCU IAW MM 27-42-05. OPS CHECK GOOD. STAB TRIM ACTUATOR P/N: 8396-3, S/N OFF: 816.