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Posted: 6/17/2009 4:03:05 PM EST
Airframe fatigue? Poor maintenance?

Link Posted: 6/17/2009 4:05:25 PM EST
Link Posted: 6/17/2009 4:06:04 PM EST
The C130 was sold by the AF due to wing spar cracks. Add some cheap aerial FF operation to buy the bird and the end result is that video.
Link Posted: 6/17/2009 4:14:16 PM EST
Whatever it was, that sucked. Looks like a simple failure of the airframe. Cracks, fatigue, whatever, looks like somebody wasn't doing inspections. I don't know how much those chemicals weigh......possibly too heavy? Just the way both wing folded-up was really weird.
Link Posted: 6/17/2009 4:15:17 PM EST
[Last Edit: 6/17/2009 4:35:55 PM EST by raysheen]
I believe the consensus was that it was loaded with retardant and there was an abrupt and extreme control movement but I could be thinking of another crash. If you know the date and/or location the you can search the NTSB website for the cause of the crash. edit for clarity
Link Posted: 6/17/2009 4:15:18 PM EST
Was that the CDF bird?
Link Posted: 6/17/2009 4:15:21 PM EST
I vote overloading. Never seen it do that with a bird full of jumpers
Link Posted: 6/17/2009 4:18:58 PM EST
It looks edited...
Link Posted: 6/17/2009 4:19:34 PM EST
overloaded mixed with structural wear and tear. rode that old mule too hard
Link Posted: 6/17/2009 4:29:33 PM EST
Don't know about the overloaded part, but those C130s (A models) were given to the operators with the understanding that they would be used for contract firebombing. The root cause was undetected corrosion in primary structure, coupled with the high cycle airframes. The corrosion issues were too deeply buried in the airframe and way too expensive to fix. Could be wrong but I believe all of those elderly Hercs were permanently grounded. the Hercs you see fighting fires now, are Guard/Reserve birds modified for the purpose.
Link Posted: 6/17/2009 4:32:41 PM EST
Damn.
Link Posted: 6/17/2009 4:34:51 PM EST
airframe overloaded, probably tried to get too much lift w/o dumping out all the water first. The full video actually has an interview with the pilot before this happened if I remember correctly, the pilot didn't make it out after the fact obviously.
Link Posted: 6/17/2009 4:37:08 PM EST
Link Posted: 6/17/2009 4:37:36 PM EST
Wing crack yes, still a mjaor issue today, the Military has several inspection set up to ensure this doesn't happen and to catch the cracks. And yes it is very expensive and labor intensive to get the wing boxes replaced, but still cheaper than buying a new airplane or losing a plane and crew.
Link Posted: 6/17/2009 4:41:20 PM EST
wow that was crazy. When did this happen?
Link Posted: 6/17/2009 4:41:54 PM EST
you can't tell because the clip is two spliced together, possibly a shifting cg due to the load dump was
translated into excesive g force.
Link Posted: 6/17/2009 4:53:36 PM EST
[Last Edit: 6/17/2009 4:57:39 PM EST by warp_foo]
One issue most here likely aren't aware of is that some of the load capacity of the airframe is determined by the weight of the fuel in the wings. More fuel == less wing bend.

It's called 'limiting wing fuel', and these folks are talking about. It isn't strength, but the wing tank fuel counteracts the upward bend of the wings and reduces stress on the spar.

I am not saying this plane didn't also have a corrosion or wing spar cracking issues, but if it were full of water/retardant, with little fuel in the wing, a high G maneuver could cause that type of failure.

m

ETA: Clarify the posting...
Link Posted: 6/17/2009 4:56:03 PM EST
Looks like gravity took over
Link Posted: 6/17/2009 4:57:20 PM EST
Originally Posted By robrath:
airframe overloaded, probably tried to get too much lift w/o dumping out all the water first. The full video actually has an interview with the pilot before this happened if I remember correctly, the pilot didn't make it out after the fact obviously.


Looks exactly right - he lifts upwards and bam - off come the wings.
Link Posted: 6/17/2009 4:57:22 PM EST
Physics
Link Posted: 6/17/2009 4:58:21 PM EST
The wings fell off
Link Posted: 6/17/2009 4:58:41 PM EST
I'd say the cause was the wings fell off the motherfucker.
Link Posted: 6/17/2009 5:00:20 PM EST
a quick google for c130 crash wings firefight turned up this page in wikipedia.
Link Posted: 6/17/2009 6:29:13 PM EST
Thats the plane that crashed at Walker. I remember watching it on the Reno News
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