As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL APPROACH RECEIVED AMBER CAS MESSAGE PRI STAB TRIM FAIL AND MACH TRIM OFF. SECONDARY TRIM OPERATES NORMALLY. [SUP 05-02-07] PERFORMED SYSTEM OP'S CHECKS. SYSTEM OP'S CHECKS SATISFACTORY AT THIS TIME. ALL WORK DONE I.A.W. CE750 M/M 27-40-00 & 45-45-00.