Re: Airbus A320 Long-Term, 3 Million KMs Review Quote:
Originally Posted by audioholic Really tragic and points out how procedures are blindly disregarded. I had a personal experience of seeing an AI flight at Pune airport with one engine running during pushback. I then wondered how casually such things are treated in India. This was six months ago and I assumed it to be a one off case. Looks like its a common affair to see APUs INOP. I thought trains and buses lack maintenance, but looks like the same attitude is shown towards aircraft too. Very shocking. |
In all fairness, its not that unusual to have the APU INOP. Happens occasionally to the best carriers. The procedure to start the engines would be something along the following lines:
First engine would be started Engine Ground Pneumatic Start, followed by an Engine Crossbleed Start.
Not sure how it is done exactly on an Airbus, so the below is more the Boeing way, but I would expect the Airbus procedure to be similar, but would be happily be corrected by someone in the know on Airbus
Close the opposite isolation valve, get engine 1 going with a pneumatic start at the gate. Disconnect EXT AIR, and push back. Set the park brake, ask ground to verify the area behind the airplane is clear of equipment and personnel prior to increasing thrust on the operating No 1 engine.
Advance the No 1 Engine to 70% N3, check the duct pressure is @ 30%psi and (auto) start Engine No 2. Then Re set the closed isolation valve, and (auto)start engine 2.
Again, I’m not familiar with Airbus, but on most Boeings in order to execute the cross bleed start, you must advance the throttle of the running engine way out of idle to ensure it produces sufficient pneumatic pressure and volume so it can be used to start the other engine.
With engines in idle, very little thrust is produced, and subsequently much smaller chance of anything getting sucked in. But when the engine(s) are spooled up to higher settings it is going to get dangerous very quickly further away too!
I read many conflicting stories of what happened here. Whether they were still starting the engines, or started to taxi etc. We will know when the DGCA report gets released.
Here’s the link to the article on the aviation Herald http://avherald.com/h?article=490e9d05&opt=0
Or PPRUNE: http://www.pprune.org/rumours-news/5...ne-mumbai.html
Have a look at this video of a guy being sucked into a jet engine (@ 2.00 min), he survives!
On a lighter note, all sorts of stuff gets sucked into jet engines!
Last edited by Jeroen : 19th December 2015 at 07:52.
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