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Old 27th Dec 2014, 10:16
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downwind
 
Join Date: Aug 1998
Location: australia
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Boeing 737 classic/Ng question

Hi all

Assuming you conduct a bleeds off takeoff and suffer a eng fire/engine failure etc.... after the engine fire/fail nnc memory/ read and do steps have been done as the case may be and the engine out acceleration altitude is reached, as per fcom supp procedures, do you need to reconfigure the bleeds to on? If you intend to return to the departure aerodrome?

What are people's opnion of this, or is the boeing qrh eng fire Nnc engine failure nnc assuming either a bleeds off or on takeoff (from my personal observation) and the qrh checklist steps take care of the pneumatic switching

I was looking in the fcom/qrh to try and see what boeing's stance on this was, I cannot seem to find a reference from the manuals?

Second query:

Does The pps best hold speed on the fmc take turbulence into account? For low altitude holding or slowing up due to act sequencing?

Thank you and happy new year.
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