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Fuel Dump Over EWR!  
User currently offlineEWRlovr From United States of America, joined Aug 2005, 21 posts, RR: 0
Posted (8 years 7 months 2 weeks 1 day 13 hours ago) and read 2701 times:

hey guys, I just wanted to tell all of you that yesterday the 18th, a kallita 747-200 freighter took off around 2:30 or 2:40 pm and i noticed that it was dumping something because of the white stream it was releasing could anyone tell me why that plane would dump fuel within seconds after takeoff.
thanks for your answers!!!

5 replies: All unread, jump to last
 
User currently offlineYhz78 From Canada, joined Apr 2004, 147 posts, RR: 0
Reply 1, posted (8 years 7 months 2 weeks 1 day 12 hours ago) and read 2616 times:

Are you sure it wasn't just condensation off the wings?


Canada Rocks! From the west coast to the best coast!
User currently offlineLemurs From United States of America, joined Mar 2005, 1439 posts, RR: 4
Reply 2, posted (8 years 7 months 2 weeks 1 day 5 hours ago) and read 2294 times:

There is a situation where excess fuel can be dumped out the fuel dump lines on rotation on a 747, due to the way the fuel system works. I suggest searching Tech/Ops and failing there, posting there.


There are 10 kinds of people in the world; those who understand binary, and those that don't.
User currently offlinePilottim747 From United States of America, joined Jul 2001, 1607 posts, RR: 5
Reply 3, posted (8 years 7 months 2 weeks 1 day 5 hours ago) and read 2281 times:

The flight (CKS329) continued on to Liege, Belgium (LGG) so dont think it'd be dumping fuel on climbout.

pilottim747



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User currently offlineWjcandee From United States of America, joined Jun 2000, 5130 posts, RR: 22
Reply 4, posted (8 years 7 months 2 weeks 1 day 4 hours ago) and read 2235 times:

Quoting EWRlovr (Thread starter):
i noticed that it was dumping something because of the white stream it was releasing

Maybe somebody was standing the lav using the sink.  Smile


User currently offlinePSAjet17 From United States of America, joined Dec 2003, 327 posts, RR: 0
Reply 5, posted (8 years 7 months 2 weeks 21 hours ago) and read 2058 times:

I believe this has been discussed here before that the 747 has an overflow vent on the wings. If there is any fuel collected in the overflow, the combination of airflow across the wing and the rotation angle causes this fuel to spray out looking like fuel dumping. It was discussed that the wing tanks are always filled totally before fuel is stored in the center tank(s), it is not unusual to have some fuel in the wing overflow.

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