As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW HAD A OUTBOARD SPOILERONS AND OUTBOARD FLIGHT SPOILERS CAUTION MESSAGE. THEY DECLARED AN EMERGENCY ON DECENT AND LANDED WITH OUT ANY FURTHER ISSUES. MAINTENANCE REPLACED THE LT INBOARD AND OUTBOARD MULTI FUNCTION SPOILER PCU'S AND EVERYTHING OPS CHECKED GOOD.