As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STAB TRIM AND MACH TRIM MESSAGES ILLUMINATED IN FLIGHT. PILOT DECLARED AN EMERGENCY. CLEANED CAPTAIN''''S AND CO-PILOTS TRIM DISCONNECT SWITCH. PERFORMED OPERATIONAL TEST OF THE HORIZONTAL STAB TRIM SYSTEM IAW 27-40-00. OPERATIONAL TEST SATISFACTORY. PERFORMED OPERATIONAL TEST OF HSTCU IAW 27-41-00. OPERATIONAL TEST SATISFACTORY.