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Delta emergency @ LAX, dumps fuel on school playground.

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Delta emergency @ LAX, dumps fuel on school playground.

Old 21st Jan 2020, 15:15
  #241 (permalink)  
 
Join Date: Mar 2007
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Originally Posted by wiggy View Post
Which ones are you thinking of?

Wiggy you are going to make me look bad here if I can't recall exactly what messages appear but here is my best effort.

FUEL QTY and Jettison time show on the EICAS and the Fuel synoptic . The jettison system system will automatically reference this to the MLW but you can intervive by setting the MLW up or down with the Fuel To Remain switch, as I recall. I also seem to recall that putting the fuel jettison into motion will cause the Fuel synoptic to display as well. so that whne you have finished with the LANDING Electronic Check List it would reappear if you were still dumping fuel.

I don't have my FCOM or QRH so I'm going from memory
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Old 21st Jan 2020, 18:34
  #242 (permalink)  
 
Join Date: Jan 2002
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Originally Posted by cthruit View Post
A plausible scenario is setting fuel jettison to MLW with the intention of reducing landing weight as much as possible, but willing to accept an overweight landing. Then, forgetting to terminate the jettison as the aircraft descended because of a very busy cockpit.
Doesn't the system stop without any crew action once a certain amount is dumped?
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Old 21st Jan 2020, 18:43
  #243 (permalink)  
 
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Originally Posted by Rwy in Sight View Post
Doesn't the system stop without any crew action once a certain amount is dumped?
Yes, as is implied by the post that you quoted.

But if the "certain amount dumped" was intended to get down to MLW, it's hard to see that being achieved by dumping for only 15 minutes.
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Old 21st Jan 2020, 18:47
  #244 (permalink)  
 
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Originally Posted by Rwy in Sight View Post
Doesn't the system stop without any crew action once a certain amount is dumped?
No it defaults to what ever fuel it takes to equal the MLW without crew action, BUT the crew can modify this number.
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Old 24th Jan 2020, 19:50
  #245 (permalink)  
 
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Originally Posted by Spooky 2 View Post
No it defaults to what ever fuel it takes to equal the MLW without crew action, BUT the crew can modify this number.
But if the "certain amount dumped" was intended to get down to MLW, it's hard to see that being achieved by dumping for only 15 minutes.
So there was not enough time orbiting over the ocean to dump the amount of fuel down to MLW? When did the dumping stop?
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Old 24th Jan 2020, 21:10
  #246 (permalink)  
 
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Originally Posted by Rwy in Sight View Post
So there was not enough time orbiting over the ocean to dump the amount of fuel down to MLW? When did the dumping stop?
See link in post #210 for Delta's statement.
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Old 25th Jan 2020, 14:29
  #247 (permalink)  
 
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Originally Posted by Rwy in Sight View Post
So there was not enough time orbiting over the ocean to dump the amount of fuel down to MLW? When did the dumping stop?

Don't know as I wasn't there on the flight deck.
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Old 26th Jan 2020, 18:38
  #248 (permalink)  
 
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OK once again the incident report would make an interesting reading.
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Old 26th Jan 2020, 20:24
  #249 (permalink)  
 
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Originally Posted by Rwy in Sight View Post
OK once again the incident report would make an interesting reading.
Don't believe the FAA or anyone else for that matter publishes that information for public consumption. What with all the crap going on in aviation and the world I simply cannot figure out why this was made into such a big without knowing ALL the facts.
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