As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 6158 LAX - PHX - SBA, CAPTAIN DIVERTED TO LAX WHEN AIRCRAFT INDICATED AN O/B SPOILERON AND O/B FLIGHT SPOILER CAUTION MESSAGE. MX RESET SYSTEM, PERFORMED SPOST PER SERVICE LETTER AND IT OPS CHECKED GOOD WITH NO FURTHER FAULTS FOUND.