Because this doesn't show a full startup procedure and puts a few different clips together. This video is a little better as they don't cut it all out, but the camera man doesn't know where to look. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IGM8EAkolts.html
Is the coming up long video going to introduce every step of starting a 737? Thanks, I'm a student pilot looking for the most accurate "cold & dark start video" on RU-vid to practice on my PMDG. :D
Really nice video.. Suggestion: maybe you could try to film the whole dash instead of doing all close-ups? I think the flight simulator fans would all appreciate that!
If restart is safe then yes mostly similar you can see the checklist here www.737ng.co.uk/737-800%20Quick%20Reference%20Handbook%20(QRH).pdf page 105 section 7.13
I am not sure about the 737 system, but on the A320, Engine #2 was started first because the Parking Brake is pressured by the Yellow Hydraulic System, itself powered by Engine #2. Thus, after push-back, if the ground staff asks you to put the parking brake on, you do not use the accumulator. It's been a few years since I've flown one though, so SOP's may have changed.
Pretty much, we use bleed air from the APU (sort of a small jet engine) to get the engine rotating, once it reaches a certain rotation speed (25% N2), we inject fuel by lifting the lever you see around 0:10
Ducts in the airplane running form the APU to the engines, air can also provided by ground generators. However the ducts are heavy and wasting limited heard room, one of the many reason why 787 Dreamliner got rid of bleed air system, 787s use motors instead.