Airspeed Unreliable (Stick Shaker Deactivation by Pulling Circuit Breaker)

1. Objective: To identify a reliable airspeed indication, if possible, or to use the the Flight With Unreliable Airspeed table in the Performance Inflight section, for the remainder of the flight. Autopilot (if engaged) → Disengage Autothrottle (if engaged) → Disengage F/D switches (both) → OFF Set the following gear up pitch attitude and thrust: Flaps extended → 10° and 80% N1 Flaps up → 4° and 75% N1 PROBE HEAT switches → Check ON The following indications are reliable: Attitude N1 Ground speed Radio altitude