What was found
IN FLIGHT AT 31,000 FT RECEIVED STAB TRIM AND MACH TRIM CAUTION MSG. REPLACED HSTCU AND MOTOR CONTROL UNIT IAW 27-23-01 AND RII 27-415. P/N 7062-3, S/N OFF 319.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
IN FLIGHT AT 31,000 FT RECEIVED STAB TRIM AND MACH TRIM CAUTION MSG. REPLACED HSTCU AND MOTOR CONTROL UNIT IAW 27-23-01 AND RII 27-415. P/N 7062-3, S/N OFF 319.