As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT WITH SPEED BRAKE FULLY EXTENDED, THE AIRCRAFT EXPERIENCED A SLIGHT ROLL. CREW DISCONNECTED AUTOPILOT AND RETRACTED SPEED BRAKES. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND ACCUMULATION OF ICE IN THE RIGHT SPOILER CONTROL. REMOVED THE ICE AND LUBRICATED THE SYSTEM, OPERATIONAL CHECK GOOD.