Virgin Atlantic A340 Undercarriage incident
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Karl Swar #1 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote: >Is there any word yet as to why the port main failed to come down?
Aviation Week (November 10, 1997, p. 59) says a "preliminary inspection points to a fastener coming loose on a brake rod, which possibly impeded the movement of the landing gear as it was trying to extend." Quote: >(A {*filter*} Atlantic A340 made a successful semi-belly landing at Heathrow >last week [from Los Angeles] when the port main jammed in the mid-up/down >position. Everybody got off [some injuries during the shute egress]
G-VSKY (an A340-311, name China Girl) was operating VS 024 LAX-LHR with 98 passengers and 16 crew. On approach, the left main landing gear failed to extend. The center and right mains as well as the nose gear deployed normally. Several attempts were made to jar the gear loose, to no avail. With fuel running low, the aircraft finally landed on the foamed south runway (27L, I assume) with only about 15 minutes of fuel remaining, tipping onto one of its engines (probably #1) during the rollout. Nine people (including at least two crew) were treated for minor injuries received during the evacuation. Quote: >Will the plane fly again? My guess is yes eventually.
It's not uncommon for airliners to land with one or more landing gear unextended and, except for very old aircraft that were near the end of their life anyway, they're fixed up and put back in service. No reason this one should be different. --
|WWW http://www.***.com/ ~kls/ Moderator of sci.aeronautics.airliners -- Unix/network work pays the bills
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Wed, 03 May 2000 03:00:00 GMT |
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Pete Mello #2 / 12
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 Virgin Atlantic A340 Undercarriage incident
Karl wrote on Sun Nov 16 05:16:17 1997: Quote: > Several attempts were made to jar the > gear loose, to no avail. With fuel running low, the aircraft finally > landed on the foamed south runway (27L, I assume) with only about 15 > minutes of fuel remaining, ...
All of the news reports I have seen stated that (in addition to trying to force the gear down with positive g), the pilots circled for 40 minutes to burn off excess fuel before attempting the crash landing. (Since the A340 has the capability to dump fuel, unlike the A320, this puzzled me a bit.) Peter Mellor, Centre for Software Reliability, City University, Northampton Square, London EC1V 0HB, UK. Tel: +44 (171) 477-8422, Fax: +44 (171) 477-8585
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Thu, 04 May 2000 03:00:00 GMT |
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Roger Chung-W #3 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote: >(A {*filter*} Atlantic A340 made a successful semi-belly landing at Heathrow >last week [from Los Angeles] when the port main jammed in the mid-up/down >position. Everybody got off [some injuries during the shute egress] >and the plane looked ok apart from some damage to the belly and port inner >engine nacelle.) >Will the plane fly again? My guess is yes eventually.
The A340 does not appear to have been very badly damaged. It is being repaied by BA at its LHR East Base. Number 1 & 2 engines have been removed and what appears to be a large tripod is supporting the port wing whilst work on the undercarriage proceeds.
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Thu, 04 May 2000 03:00:00 GMT |
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Malcolm We #4 / 12
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 Virgin Atlantic A340 Undercarriage incident
if it was written: Quote: >Karl wrote on Sun Nov 16 05:16:17 1997: >> Several attempts were made to jar the >> gear loose, to no avail. With fuel running low, the aircraft finally >> landed on the foamed south runway (27L, I assume) with only about 15 >> minutes of fuel remaining, ... >All of the news reports I have seen stated that (in addition >to trying to force the gear down with positive g), the pilots >circled for 40 minutes to burn off excess fuel before attempting >the crash landing. (Since the A340 has the capability to dump >fuel, unlike the A320, this puzzled me a bit.)
Why? If you have trouble lowering the gear, surely there is no reason to rush into an emergency landing while you've still got fuel? The gods might smile at you, someone on the ground may come up with an manoevre to shake the gear down, etc. Of course, the trick is not to take it too far the other direction, as a United DC-8 did at Portland many years ago... (they had gear problems, and then ran out of fuel, and so crashed short of the runway...) Malc.
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Mon, 08 May 2000 03:00:00 GMT |
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Andrew Cruickshan #5 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote:
> Karl wrote on Sun Nov 16 05:16:17 1997: > > Several attempts were made to jar the > > gear loose, to no avail. With fuel running low, the aircraft finally > > landed on the foamed south runway (27L, I assume) with only about 15 > > minutes of fuel remaining, ... > All of the news reports I have seen stated that (in addition > to trying to force the gear down with positive g), the pilots > circled for 40 minutes to burn off excess fuel before attempting > the crash landing. (Since the A340 has the capability to dump > fuel, unlike the A320, this puzzled me a bit.)
There would be a lot of ATC work involved in sorting out air traffic - they would have to presumably allow for closure of both runways. Dumping fuel takes a while anyway. The crew might want the time to consult with their airline's technical staff and also prepare themselves. Why rush? There seemed to be a huge delay in getting the runway cleared afterwards - about 24 hours before the aircraft was finally moved. The impact on schedules - especially European and domestic was terrible. I was surprised that the A340 wasn't moved off the runway and everything cleared up before the next morning. --------------------- Andrew.
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Mon, 08 May 2000 03:00:00 GMT |
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trevfen #6 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote:
> Karl wrote on Sun Nov 16 05:16:17 1997: > > Several attempts were made to jar the > > gear loose, to no avail. With fuel running low, the aircraft finally > > landed on the foamed south runway (27L, I assume) with only about 15 > > minutes of fuel remaining, ... > All of the news reports I have seen stated that (in addition > to trying to force the gear down with positive g), the pilots > circled for 40 minutes to burn off excess fuel before attempting > the crash landing. (Since the A340 has the capability to dump > fuel, unlike the A320, this puzzled me a bit.)
Not all that puzzling really, If they dumped fuel there would have been an outcry from the uninformed public about the plane pouring fuel all over their houses or whatever. Burning it instead of dumping it achieves the same result without feeding a media frenzy. Trevor Fenn
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Mon, 08 May 2000 03:00:00 GMT |
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James Matthew Web #7 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote: >There seemed to be a huge delay in getting the runway cleared >afterwards - about 24 hours before the aircraft was finally >moved. The impact on schedules - especially European and >domestic was terrible. I was surprised that the A340 wasn't moved >off the runway and everything cleared up before the next morning.
Don't expect a lot of rationality from airport management. Everybody and his brother probably wants to investigate to make sure they are not at fault, and no incriminating evidence is accidentally altered. Fixing blame and avoid blame is far more important that the disruption to only 70,000 passengers or so... a few years ago I was on my way up to Langkawi for the first LIMA show. We were delayed leaving KUL for an hour, and then parked at Penang for another hour.. Turned we were waiting for a Mig-29 to get a new tire. The Mig-29 after getting in the days practice had popped a tire on landing. Just left it in the middle of the runway for 3 hours while they replaced the tire!!! Only 1 runway (albeit a long one) at Langkawi. Such is life these days..
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Tue, 09 May 2000 03:00:00 GMT |
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Jon Krock #8 / 12
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 Virgin Atlantic A340 Undercarriage incident
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>Not all that puzzling really, If they dumped fuel there would have been >an outcry from the uninformed public about the plane pouring fuel all over >their houses or whatever. Burning it instead of dumping it achieves the >same result without feeding a media frenzy.
The fuel is vaporized as it leaves the dump tube and by the time it hits the ground it is spread out over such a vast area that it is virtually undetectable. --
Aus des Weltalls Ferne, Funken Radiosterne, Quasare und Pulsare -Kraftwerk
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Tue, 09 May 2000 03:00:00 GMT |
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Dave Pulla #9 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote: >> Karl wrote on Sun Nov 16 05:16:17 1997: >>> the aircraft finally >>> landed on the foamed south runway (27L, I assume) with only about 15 >>> minutes of fuel remaining, ... > There seemed to be a huge delay in getting the runway cleared > afterwards - about 24 hours before the aircraft was finally > moved. The impact on schedules - especially European and > domestic was terrible. I was surprised that the A340 wasn't moved > off the runway and everything cleared up before the next morning. > Andrew.
Which leads me to wonder, do the authorities not have other airports to "suggest" to the capt to land at rather than close Heathrow, of all airports. While I have not explored the availability of crash rescue services at, for example Stansted, about 30 miles NE of Heathrow, and of 7000 feet runway length or more, if my memory is correct, it seems to me that there should be a plan to keep UK's premiere airport from being closed in most potential accidents. Of course, lives are the number one priority, but I doubt a business jet with the same problem would have been allowed to so easily disrupt aviation. Dave Pullan
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Tue, 09 May 2000 03:00:00 GMT |
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Larry Sto #10 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote:
>Which leads me to wonder, do the authorities not have other airports to >"suggest" to the capt to land at rather than close Heathrow, of all >airports. While I have not explored the availability of crash rescue >services at, for example Stansted, about 30 miles NE of Heathrow, and of >7000 feet runway length or more, if my memory is correct, it seems to me >that there should be a plan to keep UK's premiere airport from being closed >in most potential accidents. Of course, lives are the number one priority, >but I doubt a business jet with the same problem would have been allowed to >so easily disrupt aviation.
I can't say how other countries would handle it but in the U.S., if I'm flying a plane and declare an emergency, ATC better well just do what I ask provided there's no technical reason they can't. Now gear extension problems don't fall in the "distress" (MAYDAY) category of emergency, at least not until you actually land but there are many distress situations where you need a suitable runway and you need it right now. I fly light twins and in those planes, with one engine inoperative, your go-around capability is zero. Once you put the gear down, the plane is descending. So if I do lose an engine, I'm going to be wanting to set it down on a longer runway than I normally need (so I can aim a couple of thousand feet down the runway and then if I come up short, I'm still landing on runway). If the nearest suitable runway is a major air carrier airport, that's where I'm going and we can deal with the aftermath after I'm down safely. --
http://www.wwa.com/~lstone/ Schaumburg, IL, USA I work for United Airlines but never, never speak for them
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Thu, 11 May 2000 03:00:00 GMT |
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Niels Sampa #11 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote: >Which leads me to wonder, do the authorities not have other airports to >"suggest" to the capt to land at rather than close Heathrow, of all >airports. While I have not explored the availability of crash rescue >services at, for example Stansted, about 30 miles NE of Heathrow, and of >7000 feet runway length or more, if my memory is correct, it seems to me >that there should be a plan to keep UK's premiere airport from being closed >in most potential accidents. Of course, lives are the number one priority, >but I doubt a business jet with the same problem would have been allowed to >so easily disrupt aviation.
This was discussed on uk.transport.air a few weeks ago. I think the key point was that the plane used up its fuel circling LHR in anticipation of a successful gear lowering (trying to G-force the gear down or find some other fix) so that in the end when a diversion to RAF Manston was suggested the fuel situation already necessatated LHR. -- -Niels
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Thu, 11 May 2000 03:00:00 GMT |
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trevfen #12 / 12
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 Virgin Atlantic A340 Undercarriage incident
Quote:
> >Not all that puzzling really, If they dumped fuel there would have been > >an outcry from the uninformed public about the plane pouring fuel all over > >their houses or whatever. Burning it instead of dumping it achieves the > >same result without feeding a media frenzy. > The fuel is vaporized as it leaves the dump tube and by the time it hits > the ground it is spread out over such a vast area that it is virtually > undetectable.
Yes, Quite correct. As a pilot myself I am aware that any fuel dumped at around 6000 feet or more will not have an impact on the ground below. Try convincing the public of that fact though. Trevor Fenn
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Sat, 13 May 2000 03:00:00 GMT |
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