What was found
AIRCRAFT GROUNDED. CAPT SIDE AIRSPEED UNRELIABLE DURING CLIMB, APPROPRIATE CHECKLIST PERFORMED. NORMAL LANDING. PERFORMED PITOT/AOA/TAT PROBE HEAT TEST AMM 30-31-00-730-801, FOUND CAPT PITOT HEATER INOPERABLE. RE-ACCOMPLISHED PROBE HEAT SYST TEST, PER AMM 30-31-00-720-801 WITH THERMOCOUPLE AND FOUND +400 DEG F IN APPROXIMATELY 30 SECONDS. ACCOMPLISHED CA PITOT PROBE REMOVAL, PER AMM 34-11-01-000-801 STEPS 2A THRU 2D(15). INSTALLED PITOT PROBE, IAW AMM 34-11-01. OPERATIOINS CHECK GOOD.