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American 763 takeoff incident, ORD

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American 763 takeoff incident, ORD

Old 28th Oct 2016, 20:57
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American 763 takeoff incident, ORD

Airliners.net reporting that a 763 suffered a tyre blowout on takeoff from ORD. Lots of smoke, but aircraft appears substantially intact; all evacuated safely.

https://pbs.twimg.com/media/Cv4R_z4UMAE7Itu.jpg:large
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Old 28th Oct 2016, 21:05
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"Intact"? https://www.rt.com/usa/364606-plane-fire-chicago/
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Old 28th Oct 2016, 21:06
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Old 28th Oct 2016, 21:07
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and from the otherside

https://www.rt.com/usa/364606-plane-fire-chicago/
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Old 28th Oct 2016, 21:09
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and from the otherside

Aircraft Reported "Down" at O'Hare Airport in Chicago - Breaking911
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Old 28th Oct 2016, 21:14
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Another GE uncontained engine failure?
Without knowing the tail number, etc. I'd assume it's CF6-80C2 PMC (non-FADEC) - that makes up the majority of the American 767 fleet.
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Old 28th Oct 2016, 21:17
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N345AN....2003 delivery, relatively young. The right wing is toast, outboard half of it melted to the ground
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Old 28th Oct 2016, 21:24
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Was operating AA 383, ORD-MIA; aborted takeoff.

Photo: N345AN (CN: 33084) Boeing 767-323(ER) by John Fitzpatrick Photoid242852 - JetPhotos.Net

There was some confusion as to whether this might be part of an airport fire drill, as suggested by some tweets; there was actually a fire drill ongoing when the incident occurred, but as the photos/footage show - definitely not a drill.

Has also been reported that FAA ordered a ground-stop, but airport still operating.
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Old 28th Oct 2016, 21:50
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Has also been reported that FAA ordered a ground-stop, but airport still operating.
Maybe it's just vernacular but doesn't the airport operator order the stop to permit land vehicles to operate freely and the tower passes it on?

After sorting it out an agreement is reached rather quickly on what runways and taxiways can accept traffic and the tower takes over
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Old 28th Oct 2016, 22:02
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The fire category of the airport might be decreased under the minimum needed for operation of large transport aircraft while the firefighters are occupied with the 767.
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Old 28th Oct 2016, 22:18
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AA 383 Heavy cleared into position at N5 on 28R, then cleared for takeoff, left turn heading 220, wind 200 at 14.

AA 383 announces stopping on the runway. The tower says the right wing is on fire, AA 283 says send the trucks.

AA says they are evacuating.

More here starting at 00:27 into the recording, including reports of sparks on the takeoff roll from another aircraft:

http://archive-server.liveatc.net/ko...2016-1930Z.mp3
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Old 28th Oct 2016, 22:35
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Some info from ORD suggests that a tire or two blew during the abort and pieces penetrated the right inner fuel tank. That would cause the huge fire event on the right side. The question will be if it was a tire failure that was caused by an uncoontained engine failure or if it was an abort for what they thought was an engine issue but was in fact a blown tire. The sounds are very similar but the indications, of course, are not. I'm sure it will all come out in the investigation.

Kudos to the crew for getting the actual evacuation done quickly and safely. That's not easy with a raging fire going on next to you.
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Old 28th Oct 2016, 22:39
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Now video trending on twitter

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Old 28th Oct 2016, 22:48
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Seemingly another GE engine going pop. Apparently this had 2x GE CF6-80C2B6, for interest the BA 777 in LAS last year had 2x GE GE90-85B. As I understand, the GE90 was a complete redesign but did is it fundamentally a pretty similar power plant?
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Old 28th Oct 2016, 23:22
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I noticed the slide at door 2L has difficulty extending into position. Looks like due to the wind. At 14kts, I'd be concerned about its ability to extend at 35-40kts of wind which is the certificated demonstrated crosswind limit.

Also, anyone else notice the FedEx crash in FLL in the rt.com link above? Looks like a left gear failure on landing.
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Old 28th Oct 2016, 23:29
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As I understand, the GE90 was a complete redesign but did is it fundamentally a pretty similar power plant?
Fundamentally very similar, both have a fan, compressor, combustor, HP turbine and LP turbine. Except one was designed in the early 1980s and the other in the early 1990s. One sports somewhere around 50,000lbs of thrust the other 85,000lbs of thrust. I think you will find the same with the RB-211 and the Trent engine series...
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Old 28th Oct 2016, 23:33
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As I understand, the GE90 was a complete redesign but did is it fundamentally a pretty similar power plant?
No, GE90 is a clean sheet design compared to the CF6 - about all they have in common design wise is they are both two spool and made by GE.
There have been a number of issues with burst turbine discs on the CF6, but I don't recall the -80C2 variant being affected. The big problem has been with the CF6-50, with a few other well known events on the CF6-80A. Two -80A disc failures occurred during ground runs - one ground run failure resulted in the 767 burning to the ground (USAir IIRC).
But as noted, I don't recall any such issues with the CF6-80C2 (which was a major redesign of the -80A, not a whole lot in common)
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Old 28th Oct 2016, 23:56
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Inside!

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Old 29th Oct 2016, 00:03
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Originally Posted by cactusbusdrvr View Post
Some info from ORD suggests that a tire or two blew during the abort and pieces penetrated the right inner fuel tank. That would cause the huge fire event on the right side. The question will be if it was a tire failure that was caused by an uncoontained engine failure or if it was an abort for what they thought was an engine issue but was in fact a blown tire.
On some of the posted videos there are dark fabric looking things hanging off the right horizontal stab, perhaps remnants of a burst tire or two.

I was a pax on an MD-11 that had burst tires FOD the engine on a high speed reject years ago. Similar to the question above, I wondered if the tire burst came first or if the autobrakes caused the tire burst and the FOD occurred when the engine went into reverse.

I'm guessing a tire explosion can throw debris far enough in front to FOD the engine even with forward thrust at 100 knots. And, punch holes in the fuel tanks on the wing.
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Old 29th Oct 2016, 00:03
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There were a number of failures with a C2A5 powered widebody airbus fleet in my airline.
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