As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT DURING CRUISE, AT 31,000 FT, THEY RECEIVED AN EFIS COMP MON MESSAGE THAT THE CAPTAIN’S SIDE INDICATED AIRSPEED WAS UNRELIABLE. THE CREW DECLARED AN EMERGENCY WITH ATC. THE FLIGHT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, PURGED MOISTURE OUT OF NR 1 PITOT STATIC DRAIN AND PERFORMED CHECKS IAW THE AMM. THE ACFT WAS RELEASED FOR SERVICE.