As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN'S AIRSPEED INDICATOR WAS FROZEN AT 150 KNOTS ON TAKEOFF, THEN DROPPED TO 60 KNOTS. FLIGHT RETURNED TO PHX AND LANDED WITHOUT INCIDENT. REPLACED CAPTAIN'S AIRSPEED INDICATOR AND OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.