PPRuNe Forums - Question on QRH

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B738HT

25th May 2014 11:12

Question on QRH

For the QRH " Landing Gear Lever Will Not Move Up After Take Off", could anyone explain me why " Do not arm the Auto-brake and Speedbrake"?

guidavide

25th May 2014 11:20

It is due to the (possible) failure of the Air/Ground system (second condition of the NNC).

de facto

25th May 2014 11:24

Do you want the ground spoilers to deploy in flight?:E

3 Point

25th May 2014 11:25

Does your aircraft type automatically deploy ground spoilers after landing? If so, is the trigger for that weight on wheels and thrust lever to idle?

If the gear handle is blocked down because the system is sensing weight on wheels and you arm spoilers what's going to happen if you then set idle thrust to descend?

B738HT

25th May 2014 14:25

Making sense for the Speedbrake. What about the auto brake related to the air/ground sensor?

777AV8R

25th May 2014 14:28

Auto Brake...

With a failed sensor, you can expect no locked wheel protection

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