As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MACH TRIM FAIL LIGHT ILLUMINATED FOLLOWED QRH AND LIGHT RESET WITH MASTER CAUTION. CAPTAINS PITCH BAR ON F/O FAILED AND CB SENSOR EXC AC TRIPPED. RESET CIRCUIT BREAKER ON PANEL P-18-1 C-5 "SENSOR-EXC-AC" IAW AMM 20-60-01-860-801. PERFORMED BITE TEST OF INTEGRATED FLIGHT SYS ACCESSORY UNIT IAW AMM 22-11-37-400-801. TEST COMPLETED AND PASSED WITH NO FAILURES. GROUND VERIFICATION SATISFACTORY.