Airspeed Unreliable

Question 1

Condition:

Answer 1

Condition: Airspeed or Mach indications are suspected to be unreliable. (Items which might indicate unreliable airspeed are listed in the Additional Information section)

Question 2

Airspeed or Mach indications are suspected to be unreliable. (Items which might indicate unreliable airspeed are listed in the Additional Information section)

Answer 2

Objective: To identify a reliable airspeed indication, if possible, or to continue the flight using the Flight With Unreliable Airspeed table in the Performance Inflight chapter.

Question 3

Objective: To identify a reliable airspeed indication, if possible, or to continue the flight using the Flight With Unreliable Airspeed table in the Performance Inflight chapter.

Answer 3

Autopilot (if engaged) …. Disengage

Question 4

Autopilot (if engaged) …. Disengage

Answer 4

Autothrottle (if engaged) ….. Disengage

Question 5

Autothrottle (if engaged) ….. Disengage

Answer 5

F/D switches (both) ….. OFF

Question 6

F/D switches (both) ….. OFF

Answer 6

• Set the following gear up pitch attitude and thrust:

Question 7

• Set the following gear up pitch attitude and thrust:

Answer 7

– Flaps extended ….. 10° and 80% N1

Question 8

– Flaps extended ….. 10° and 80% N1

Answer 8

– Flaps up ….. 4° and 75% N1