As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, CAPT AIRSPEED INDICATOR ROLLED BACK CAUSING STALL AND WINDSHEAR WARNING. AIRSPEED THEN WENT TO MAX SCALE WITH STICK SHAKER ACTIVATION. AIRCRAFT RETUNED TO PHX AND MADE AN UNEVENTFUL LANDING. INSPECTED AND REPLACED CAPT ADC, PERFORMED PITOT STATIC LEAK CHECK AND DFCS BITE CHECK PER BOEING M/M.