As one who has spent a fair portion of my life at JFK I just cant belive that anyone would expect the Ground Controllers to warn crews about every potential collision posibility, {they cant even see some gates} dear God they would never stop talking or come up for air! Its real simple, the buck stops in the left seat, period! |
Colleagues (if you will permit me that)
I drive helicopters. Once upon a time, I was tasked to explore the envelope for night operations in close proximity to cliffs in a Bell 412 (rotor diameter, IIRC, 42 ft). Our minimum clearance was 10 ft, our normal clearance was 15 ft. I spent a day with a tape measure putting markers next to the hangar, and having got a colleague to check independently that my marks were correct, we got airborne in daylight for a first go. I was really scared getting to 15 ft in daylight, 10 ft was truly horrible. Then we did it again in the dark. Our conclusion was that nobody would ever get that close in an unrecced situation - the pucker factor was far too much - we would have stopped at about 25 ft but for our well-calculated marks. The point applied to this is that it is near impossible to judge lateral distances in the dark. We could not do it in the 20-40 ft range in a highly controlled situation. AF didn't have a hope. Sven |
C'est nepas un bon nuit - malheursement
The most stressful part of my job is getting to my left front seat of the jet, immediately followed by getting the jet off the gate and to the correct runway. I feel like this is the most threat packed portion of my duty day. Then there is the task of getting the jet off the runway and to the gate following the subsequent landing which is another rich environment for bad things to take place.
Most of the time the portion in-between, actual fight time, is relatively easy. Being in the left front seat of a “super” 380 is arguably the pinnacle of the commercial piloting career. What a lousy night for everybody involved. |
How about this from a baffled ambulance chaser.
:confused: I'll say. :hmm: Runway Incursion At JFK - Will The FAA’s Waiver For Super Sized Jets Increase Incursion Incidents? James T. Crouse. Attorney. Personal Injury Lawyers. On April 12, the world’s largest commercial passenger jet, an A380, was involved in a runway incursion when it clipped the tail of a much smaller regional jet at John F. Kennedy’s International Airport. Fortunately, there were no injuries to the unknown number of passengers on Air France Flight 7 or to the 62 passengers and four crew members on the Comair CRJ701 Regional Jet. Runway Incursion At JFK - Will The FAA |
Yes the AF crew failed to operate the aircraft safely I am surprised that some people are still suggesting that the 'buck doesn't stop with the AF crew'! Are you having a giraffe? :ugh: |
some have dismissed my idea of pilot/escort/follow me vehicles with radio comm to the plane in question.
When the A380 was coming along, we knew clearances were going to be tough on the ground...after all they designed a 4 engine plane with only inboard thrust reversers, thinking the outboards would hang out over the grass. well, it would have been cheap insurance last night to have those pilot cars. Just thinking about the turn the comair did, I can imagine , faster than can be read, that the horizontal stab was pushed down perhaps raising the nose gear off the ground, making the next step, pushing the plane about with about as much ease as some of you remember while pushing down on the stab and shifting that C150 around. I hope that all those nice folks on the regional jet have a neck exam by a doctor, and then talk to a lawyer anyway. There seems to be a rush to embrace the concept of ''assumed action'''perhaps air france assumed that comair would continue straight ahead instead of stopping. Many ATC facilities clear you for takeoff before the preceeding plane has broken ground...with assumed action (or whatever atc calls it now). |
If the ground controller had been speaking in French at the time then this would not have happened. ;) |
As we all know; ATC taxi instructions include taxiway designator, stop and hold short instructions, give way to, follow, cross runway, to runway, etc.
The dumbest thing the AF Captain did was to taxi that fast. The smartest thing the AF Captain did was to immediately stop the aircraft. If it is on the taxiway center line, AND if he is not in violation of taxi instructions, he is NOT entirely responsible for the accident. Below_______________ Mikehotel152: Try telling that to a court of law. Mixture: Just what else was he going to do Try evaluating these posts a little more before you start with your childish icons! |
If it is on the taxiway center line, AND if he is not in violation of taxi instructions, he is NOT wholly responsible for the accident. |
The smartest thing the AF Captain did was to stop the aircraft. Just what else was he going to do ? (a) He's now got a structurally unsound airframe (b) ATC were not exactly going to give him departure clearance were they ? |
Ah it makes one pine for the days of a Soviet show trial does it not? At least there was the pretense of an investigation and trial before passing the verdict.
As a former safety officer I will never forget a Colonel briefing the entire wing on a recent accident and fatality. He was almost taunting in his description of the events leading to the mishap. I thought his performance was puerile at best for I did not need to think too hard that the mishap crew certainly did not start the flight with the intent of bending metal, and in this case, not coming home from the sortie. Yet it happened and the investigator’s job was to find out why—a very detailed process that needed to plough a significant field of data. How many times have things come out in investigations that no one would have expected? Should we not grant a pretense of fairness? My point is that every professional aviator realizes the chain (and in some case multiple parallel chains) involved in such an incident and steers his/her thinking to investigating, weighing, and learning. Sure the A380 hit the regional that is clear to see and someone was at the controls of the aforementioned craft so it does not look good. Yet the professional holds his opinion until those pesky little facts have been gathered. For those of you who have not taxied large aircraft around large and busy airports I would ask that you hold your fire. A fellow aviator is in the hot seat at the moment and I owe him what I would expect for myself—a fair hearing. Indeed there are many who love this forum for no other reason than to broadcast their lack of intellectual curiosity and, even more unfortunately, a disregard for how a mishap should be addressed. For those however, who strive to master this craft of aviation (a never ending process btw whether 20 or 80 years old) I would think that we shiould fix the problem before we fix the blame. |
certainly there will be extenuating circumstances. but every experienced pilot I know , knows that just being on the centerline doesn't promise anything.
What may just come out of this is that the JFK airport isn't really suited for the super jumbo |
sevenstroke/Uncle Fred
Agreed. Narrow taxiways, high sight line, night and (alledgedly) no ability to see the wing tips - and the A380s not the only one where you can't see the tips (the 777's for certainly another - you want me to assure wingtip clearance, rather than guess/rely on taxiway markings? Sure, just give me a minute to walk back to the cabin, then I'll get back to you, then maybe I'll proceed - how you reckon that'll go down with JFK ground?), just maybe this once we shouldn't rush to judgement. The AF captain will be hung out to dry of course but what's that I hear? "there but for the grace of god....."? |
Just commenting on deSitter's observation a page ago making an assumption about the RJ's crew experience level. While the Airbus crew no doubt has more total time, I have to wonder if they are likely less experienced in type than the RJ pilots. For this type of accident, time in type may be the more important metric (having a feel for your dimensions, etc.) Be that as it may, flying time would not appear to be in any way related to this accident. |
I think the AF pilots will be the ones with the explaining to do. However, as a mitigating factor, I have seen so many pilots hold short at ridiculously long distances from the actual hold short point. I don't know if this is the case here or not, I am just making a point to those of you that stop 150 feet from the hold short point. In the future with these monsters taxiing around, you might consider being in the spot instructed, not a plane length or more from it.
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@polax52
Very nice said, but...... La Grande Nation isn't Korea. |
My thoughts go out to the A.F. captain right now. He must feel awful after what happened. He was obviously distracted for a split second but thankfully nobody was hurt. I hope the investigators examine the chain of events that led up to what seems to be an all too common occurence these days.Those of you who have hung,drawn and quartered him, should remember , there are two kinds of pilots; those that have had a taxying incident and those that haven't had one yet.
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and (alledgedly) no ability to see the wing tips |
THis is a bit of a 'what if' here, but... I have noticed that when disembarking a full A380, that once the pax & baggage is off, that the jetway is usually now lower by perhaps a foot or more.
Would a not so fully loaded flight have made any difference as to whether the collision would have happened? Looks from the video like they hit the CRJ quite close to the top of the tail fin... I know it's not really important as they shouldn't be passing that close but it did make me wonder, what is the height difference between an empty A380 parked at the gate & one fully fuelled, bums on every seat & cargo holds full.. is there a given figure for this for different ranges of weights (I know it would vary depending on all of these items), is it something that you consider as well as all the other factors in load control etc?? I guess how high you're sitting is not so important but the comment about the height of the 380 cockpit made me wonder if being fully loaded would change the perspective at all, even if only a little bit. Could be a factor also? (I recall reading they kept it a common height with other Airbus family widebodies, is that true?) (For those who will ask what is my exp, CC with a background in aviation ground ops, 5yrs flying & have worked on the 380) |
Wondering how people are arriving at the conclusion that AF was taxiing too fast and this contributed to the collision. Seems that the CRJ was back too far. That being said the AF captain should have known where his wingtips were and stopped based on that.
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Five pages of drivel and really only one intelligent posting, that being from Uncle Fred. Contrary to the "hang 'em high" crowd, the root cause in this accident is anything but a sure thing.
The RJ700 was not pushed back. They had just arrived from Boston and were headed to their gate. It appears that they stopped short due to a lack of ground crew. It's standard procedure for most airlines to have their pilots stop when there's no ground crew. The question will be if they stopped so that they were encroaching with the taxiway. |
Originally Posted by arc-en-ciel
(Post 6366388)
...a few month ago an A330 of AF has cut the tail of another AF A380 in CDG...
Maybe it's the fault of the plane. She may be resentful. :E |
root cause...ha! the darn plane is big and you better be ready for such things to happen.
encroaching on a taxiway...hey, if you stop, you are entitled to be there unless you hear something like: get out of the way comair, air france is doing warp seven towards you. many changes will be made I'm sure. But it will all be ''back to basics"...taxi no faster than a man can walk (sure, add ten minutes to scheduled block time!). If you are unsure of wingtip clearance, STOP and make sure. At some point, airplanes get too big or airports get too small. Which is easier to change? |
Well they could always let pilots think for themselves, but many don't want to. I'm referring to what seems to be the RJ stopping short because of no ground personell available to accept the flight.
Also, sure, you may have every 'right' to be there, you also have all the responsibility (assuming they still let people use common sense) to advise ground you were unable to clear the taxiway, after all JFK is busy and based on the audio it seems the ground controller wasn't even able to see the collision and the RJ didn't advise him he was unable to clear. |
Lol, this is slightly reminiscent of how the French drive their cars. Anyone who has driven or lived in France will understand.
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unless there was a specific clearance requiring comair to clear the taxiway, comair didn't have to do anything! Its not like comair was on a runway, unable to clear the runway.
Air France was on a different taxiway |
Situational awareness or lack thereof causes things like this. I'm always surprised to see people preach 'professionalism', 'intergrity' and other buzzwords and then say that it's ok to not advise a change of plans that may not be as odvious to others as it is to you.
I've heard many, many pilots advise ground they would have to hold short of the ramp area, 2 or 3 seconds of (non essential, but intelligent) radio communication can save millions in damage. |
aviatorhi
yes, advising things is really a good thing to do. but it may not be required...situational awareness is fine, but that goes both ways. |
The cause:
Once again ... a chain of events Once again ... all the holes in the swiss(french?) cheese lined up Once again ... it would have only taken one of those holes not to have lined up Once again ... murphy prevailed The Cure: We have to ensure that we take care of our own "holes" ... and that we don't rely on others to break the chain. |
For anyone who has flown to, from or within China, this video should be shown to all Chinese passengers who start to jumping around the aircraft as soon (and in many cases before) the aircaft has landed.
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NBC had some nice video tonight. There is sort of a pickup truck driving in front of the regional jet.
we all know that there are LOTS of things going on at an airport...tugs pulling baggage carts, pickup trucks, boxes blowing along the taxiway...a myriad of things. Some nice animation showing how much A380 wing hangs over the standard 75 foot wide taxiway. The truth is that this plane requi res multiple taxiways (clear) to get where its going. I don't think ATC will ever take responsibility for wingtip clearance of one plane with another. |
So if the RJ was arriving, why was it not on the centerline (which is well illuminated) and way off to the side?
Sounds like they were hanging off on the side waiting for ground crew, but we're clearly leaving their tail too close to Alpha. |
What difference does it make whether or not the RJ was rightly on or off the taxiway? Do you suppose the AF captain's argument of "I proceeded because I had the right-of-way" will carry much weight with his bosses when the repair bills come in?
No. One need only review the nose camera footage of the Apache trying to squeeze in between the trees to be reminded that if you're not sure you can fit, it's likely a good idea to wait. Especially if you're driving the world's largest commercial passenger aircraft. |
http://i96.photobucket.com/albums/l165/Hvck/jfk.jpg
"Traveling from Shanghai Airport to JFK is like going from the Jetsons to the Flintstones...." - T. Freidman |
Again??
This is the second time in a short while that an A380 has hit another airplane on the ground. From what I saw in the video, the AF jet was moving pretty fast when it hit the Comair.. Maybe they should tug the airplanes out to a clear spot for start up and taxi. Or if they can put remote cameras in the bumper of a car, then why not wing tips that sound an alarm if something is too close..Good thing no one was hurt (except the CRJ)
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Collision was at Alpha Mike, correct?
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Moral of the Story.......
Don't forget the old law......
If you're off the yellow line and you hit something....... you're stuffed, and if you're on the yellow line and you hit something you're stuffed !!!! |
Intersection of alpha and mike.
You can see the tail of the RJ parked at spot P in the right side of the video. Looks like the accident RJ was sitting somewhere behind spot T. It'd be interesting to know if there's a hold short line for the ramp there, and if so, was he past it. |
C-5 vs. 380
The C-5 Galaxy has retractable wing tip landing lights that can be adjusted to any angle. When positioned to 45 degrees it can point to the taxiway parallel to the pilots/co-pilots positions and illuminate possible clearance issues. If an object is in the spotlight... it's a possible threat.
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In addition to all of the above, why does an RJ need to be marshalled in? If these guys fly in and out of JFK everyday many times, in such a small aircraft surely you know where your nosewheel is. Was it necessary to hold so far out from the gate??? ( if you say it wasn't " so far out ", have a look at its rear end...!)
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