What was found
STAB TRIM CHANNEL 1 WILL NOT ENGAGE. REMOVED AND REPLACED MCU AND HSTCU IAW CRJ MM 27-40-00 AND 27-42-05. OPERATIONAL CHECK GOOD. P/N 8396-3, S/N OFF 1078.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM CHANNEL 1 WILL NOT ENGAGE. REMOVED AND REPLACED MCU AND HSTCU IAW CRJ MM 27-40-00 AND 27-42-05. OPERATIONAL CHECK GOOD. P/N 8396-3, S/N OFF 1078.