What was found
STAB TRIM AND MACH TRIM FAILED SHORTLY AFTER TAKEOFF AND WOULD NOT RESET. RETURNED TO FIELD. REMOVED AND REPLACED COPILOT'S STAB TRIM DISCONNECT SWITCH IAW MM 27-41-30. OPS CHECK GOOD. P/N ON & OFF 996-0013.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STAB TRIM AND MACH TRIM FAILED SHORTLY AFTER TAKEOFF AND WOULD NOT RESET. RETURNED TO FIELD. REMOVED AND REPLACED COPILOT'S STAB TRIM DISCONNECT SWITCH IAW MM 27-41-30. OPS CHECK GOOD. P/N ON & OFF 996-0013.