What was found
RECEIVED STAB TRIM AND MACH TRIM CAUTION MESSAGES IN FLIGHT. COMPLIED WITH QRH, COULD NOT RE-ENGAGE ANY STAB TRIM SYSTEM. TESTED AND FUNCTIONALLY CHECKED STAB TRIM AND HSTCU SYSTEM IAW MM 27-40-00. NO FAULTS FOUND.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RECEIVED STAB TRIM AND MACH TRIM CAUTION MESSAGES IN FLIGHT. COMPLIED WITH QRH, COULD NOT RE-ENGAGE ANY STAB TRIM SYSTEM. TESTED AND FUNCTIONALLY CHECKED STAB TRIM AND HSTCU SYSTEM IAW MM 27-40-00. NO FAULTS FOUND.