What was found
FLIGHT 5657 - ON TAKEOFF AFTER FLAP RETRACTION STAB TRIM AND MACH TRIM CAUTION MESSAGE DISPLAYED AND WOULD NOT RESET IN FLIGHT. AIRCRAFT RETURNED BACK TO BOS AND LANDED SAFELY. PERFORMED SYSTEM RESET, SYSTEM OPS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5657 - ON TAKEOFF AFTER FLAP RETRACTION STAB TRIM AND MACH TRIM CAUTION MESSAGE DISPLAYED AND WOULD NOT RESET IN FLIGHT. AIRCRAFT RETURNED BACK TO BOS AND LANDED SAFELY. PERFORMED SYSTEM RESET, SYSTEM OPS CHECKED GOOD.