As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOTS AIRSPEED INDICATOR BECAME ERRATIC AND LOUD WHINE FROM RT SIDE OF NOSE. ALSO, STALL FAIL MESSAGE ON EICAS AND PILOTS AIRSPEED ERRATIC. MAINTENANCE FOUND OXYGEN SERVICE DOOR OPEN, DOOR IN OPEN POSITION OBSTRUCTS AIR FLOW AT PITOT HEAD, SECURED DOOR AND AIRCRAFT RETURNED TO SERVICE.