As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CRUISING AT 32,000 FEET WITH AUTOPILOT ENGAGED, STAB TRIM AND MACH TRIM MESSAGES APPEARED. NEITHER STAB OR MACH TRIM WOULD RE-ENGAGE. AUTOPILOT WORKED NORMALLY. REPLACED THE NR 2 FCC CARD PER MM 22-12-14. P/N: 622-9815-904, S/N ON: 10JXC, S/N OFF: 1L3NM.