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There are hard landings, and HARD landings

Posted: Mon Oct 03, 2011 5:49 am
by Brogs

Re: There are hard landings, and HARD landings

Posted: Mon Oct 03, 2011 12:10 pm
by nwadc10
Check this one out...
http://www.airlineempires.net/blog/2008 ... -isnt-bad/

This was discussed in recurrent training and the story is that it was a bounced landing. The landing has to be pretty hard to bounce a CRJ and the danger is a resulting Groung Lift Dumping spoiler deployment while airborne. Which is what happened to this flight. The requirements to deploy GLD is thrust levers at idle or N1 less than 40% and two of the following three: L or R MLG weight on wheels; wheel speed greater than 16 kts; or radar altitude less than 5 feet.

When the plane bounced they still met the requirements for GLD to deploy. They had the thrust levers at idle, wheel spin up due to the initial touchdown and a radar altitude of less than 5 feet.

Re: There are hard landings, and HARD landings

Posted: Tue Oct 04, 2011 6:25 am
by Brogs
nwadc10 wrote:Check this one out...
http://www.airlineempires.net/blog/2008 ... -isnt-bad/

This was discussed in recurrent training and the story is that it was a bounced landing. The landing has to be pretty hard to bounce a CRJ and the danger is a resulting Groung Lift Dumping spoiler deployment while airborne. Which is what happened to this flight. The requirements to deploy GLD is thrust levers at idle or N1 less than 40% and two of the following three: L or R MLG weight on wheels; wheel speed greater than 16 kts; or radar altitude less than 5 feet.

When the plane bounced they still met the requirements for GLD to deploy. They had the thrust levers at idle, wheel spin up due to the initial touchdown and a radar altitude of less than 5 feet.
So it was the GLD Spoilers deployment due to the other factors that broke the Engine Struts? That one above is a rum do Justin,