Pressurisation non normal sequence of events NG
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Pressurisation non normal sequence of events NG
Hi
Please can you advise the sequence of events in the event of a dual engine failure and a complete loss of electrics. (Before APU start or APU U/s)
Apart from the manual controller which is on The battery bus everything else is on AC.
Kind regards
Pin
Please can you advise the sequence of events in the event of a dual engine failure and a complete loss of electrics. (Before APU start or APU U/s)
Apart from the manual controller which is on The battery bus everything else is on AC.
Kind regards
Pin
I didn't know the 737 was known for double engine failures. I'd guess, the manual controller would try to close the outflow valves while the pilots did the heavy lifting of STARTING THE APU, followed by starting an engine or two. Far more important than the pressuriation problem.
GF
GF
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I'd guess, the manual controller would try to close the outflow valves while the pilots did the heavy lifting of STARTING THE APU,
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Apart from the manual controller which is on The battery bus everything else is on AC.
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With no bleed air, how much difference is it really going to make?
Anyway, one thing at a time. Let the warnings and cautions dictate your actions as they arrive.
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It would be interesting to find out how much bleed air a windmilling engine produces. If it is producing enough pressure to open the required valves, then closing the outflow valve more should assist in maintaining cabin pressure.
Throw the O2 on get the plane safe. Let the back have a little hypoxic-induced sleep whilst ya fly her down (I suspect it'll be coming down pretty good on it's own with a simultaneous dual engine failure).