Author Topic: JBU-446 - one lightningstrike is not enough...  (Read 11892 times)

alltheway

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JBU-446 - one lightningstrike is not enough...
« on: February 19, 2011, 07:43:14 AM »
« Last Edit: February 20, 2011, 04:46:40 AM by alltheway »



Offline johnm1019

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Re: How do new haircuts origin JBU-446
« Reply #1 on: February 19, 2011, 09:21:59 AM »
I understand the bad weather conditions, but why would being hit by lightning ruffle the pilots so much?  I thought it wasn't a big deal on modern aircraft.

alltheway

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #2 on: February 19, 2011, 09:29:51 AM »
As far as I know every hit by lightning causes damage, in this case the emergency started when they observed smoke or smell of smoke in the cockpit... and they wanted to get out of this weather of course
« Last Edit: February 19, 2011, 10:47:10 AM by alltheway »

Offline joeyb747

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #3 on: February 19, 2011, 04:57:49 PM »
I understand the bad weather conditions, but why would being hit by lightning ruffle the pilots so much?  I thought it wasn't a big deal on modern aircraft.

Lightning strikes can do a lot of damage to an aircraft...sometimes it is harmless and passes through the airplane, leaving no major damage...other times it causes major damage.

Below are pics of Lufthansa B737-300, registration D-ABXM, after taking a lightning strike...

http://www.flightglobal.com/articles/2008/04/09/222837/pictures-dramatic-images-of-lufthansa-737-elevator-after-lightning-strike.html

http://www.avherald.com/h?article=404b1af6&opt=0

http://forum.bgspotters.net/viewtopic.php?p=33734#33734 (Scroll towards the bottom...)

See also:

http://www.scientificamerican.com/article.cfm?id=what-happens-when-lightni

Boeing 747 takes lightning strike:



The first three pics below are an example of major airframe damage from a lightning strike. ASA Canadair CRJ-200ER N830AS.

The fourth is an example of minor damage, leaving only a burn mark.

Hope this helps!
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Offline mhawke

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #4 on: February 24, 2011, 12:45:10 PM »
The ASA pictures are not from a lighting strike.  That was a wild rumor bouncing around the internet for awhile.   It was from an electrical fire that occured when ground power was applied.  See the NTSB report here.  http://www.ntsb.gov/ntsb/brief.asp?ev_id=20090303X74824&key=1

Offline joeyb747

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #5 on: February 27, 2011, 01:45:08 PM »
The ASA pictures are not from a lighting strike.  That was a wild rumor bouncing around the internet for awhile.   It was from an electrical fire that occured when ground power was applied.  See the NTSB report here.  http://www.ntsb.gov/ntsb/brief.asp?ev_id=20090303X74824&key=1

Open mouth...insert foot! :oops: Thanks for the correction!
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Offline mhawke

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #6 on: February 27, 2011, 09:07:27 PM »

Open mouth...insert foot! :oops: Thanks for the correction!

No problem.  I just got interested in the photos and did some searching because it was suprising to me to see that kind of damage from the lighting strike against aluminum.  I have had the unfriendly experience of being in a plane that got hit once.  No matter how much you tell yourself the planes are built for it, the engineers plan for it, the pilots train for it, I still held my breath when the lights flashed out and listened for the engines to be running.


alltheway

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #7 on: February 28, 2011, 05:36:39 AM »

Open mouth...insert foot! :oops: Thanks for the correction!

the pilots train for it, I still held my breath when the lights flashed out and listened for the engines to be running.

Hmm I don't think pilots train for it, because it scares the h*** out of them too (a human factor) but they are told what to do in such case.. and from experiences of their colleagues...

Offline joeyb747

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Re: JBU-446 - one lightningstrike is not enough...
« Reply #8 on: February 28, 2011, 08:14:36 PM »
...just as we talk about lightning strikes...

http://www.avherald.com/h?article=4388bc0b&opt=0
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