What was found
(CAN) JUST AFTER TAKE-OFF, THE STAB TRIM AND MACH TRIM FAILED AND WOULD NOT RESET. THE AIRCRAFT RETURNED TO AIRPORT. MAINTENANCE REMOVED AND REPLACED THE HORIZONTAL MCU. OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) JUST AFTER TAKE-OFF, THE STAB TRIM AND MACH TRIM FAILED AND WOULD NOT RESET. THE AIRCRAFT RETURNED TO AIRPORT. MAINTENANCE REMOVED AND REPLACED THE HORIZONTAL MCU. OK.