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EMIRATES A380 BNE

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EMIRATES A380 BNE

Old 5th Jul 2022, 08:02
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Originally Posted by KiloB View Post
Interestingly the Wheel nearest the hole is all bright and shiny (compared to the others) as if it had just been replaced/fitted? Or is that just a result of being air-blasted for many hours?

There are no brakes on the rear wheels. Therefore no brake dust!
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Old 5th Jul 2022, 08:06
  #42 (permalink)  

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Originally Posted by Eutychus View Post
Does his explanation make sense? Did A340s of that vintage have fuel dumping capacity and would the presence of an urban area make any difference to whether fuel was dumped in this scenario, or was it more a case of wanting to be on the ground in a big hurry and being too busy to bother?
For design reasons beyond this thread it is typical for the previous generation of long-haul quads to have dumping installed. With all engines running, the requirement on climb performance is well satisfied without using it.

Over an urban area or not, with a fire indication on board, landing and safely stopping in any manner that gets you on the ground the fastest is the sole objective.

Imagine rejected take-off at CDG which would cook the brakes as designed. An expedited severely overweight landing due smoke emergency 1 hour later might still take the temperatures above operational limits despite the triple available stopping distance and much lover E(kin), but they are meant to be abused when in need.
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​​​​​​Edit: Correct. It's not a failed engine or even decompression that warrants the steepest dive, fire or smoke are.

Last edited by FlightDetent; 5th Jul 2022 at 10:04.
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Old 5th Jul 2022, 08:21
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Originally Posted by Eutychus View Post
One of the reasons this SLF is here is to help overcome the after-effects of experiencing an emergency landing in July 2000 at Lyon St Exupéry by an AF A340 flying Charles de Gaulle-Johannesburg .. Did A340s of that vintage have fuel dumping capacity and would the presence of an urban area make any difference to whether fuel was dumped in this scenario, or was it more a case of wanting to be on the ground in a big hurry and being too busy to bother?
I suspect FlightDetent has it..

In the event of thinking a smoke/Fire warning is credible and most especially if you consider it may be uncontrollable you need to get the airframe on the ground as soon as possible...(checklist usually says that somewhere, often first item after diagnosis complete).

it's not a case of "to busy to bother" with fuel dumping as much it's low down the list of priorities and given typical dump rates you are not going to reduce weight significantly in the time available if you are aiming for an expeditious landing.
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Old 5th Jul 2022, 10:18
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Originally Posted by WideScreen View Post
IF the tire didn't let go on or just after leaving the ground, the next opportunity for its highest stress would be, when the aircraft does reach altitude, when the pressure difference between inside and outside gets to the max, combined with the low temperature to give the lowest plasticity / the highest brittleness of the rubber and carcass.

The picture also seems to show more sidewall damage, though, of course, you can't see from the picture, whether that's collateral damage from the landing or additional damage, originally there, just like the pre-blowout damage.

Could it be, this signals more towards damage caused during storage/mounting of the tire and less towards an operational damaging ?
Could be forklift damage or taxi light damage. Investigation will find out but tires don't blow out like that in normal service.
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Old 5th Jul 2022, 13:07
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Delta had a tire blow in Madrid on a 767 that punched a hole right through the wing. Took out two of the 3 hydraulics systems, nosewheel steering, normal and alternate brakes, limited flaps/slats and one reverser inop. It was caused by a rather large chunk of metal that somehow was cast into the tire at the time of manufacture. The statement the crew handled it well was a understatement. The landing was without most wheel brakes, on accumulator only, one reverser, limited flaps and overweight. They kept it on the paved surface until the speed dropped below 20 knots.

https://avherald.com/h?article=46c87473

Last edited by Sailvi767; 5th Jul 2022 at 13:24.
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Old 5th Jul 2022, 13:44
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Thanks for those who took the time to answer!
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Old 5th Jul 2022, 16:36
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I'm inclined to say well done to the manufacturers.... a hole presents itself to a non pressurised part of the airframe and it's a non event.

A little surprised no pax feedback about sound of a tyre blowin out. I had one blow on an A300 years back and we heard it very clearly in the front!!
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Old 5th Jul 2022, 17:12
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Passengers did report a "loud bang 30-45 minutes after takeoff " according to press reports. We can assume one or more members of the cabin crew must have heard something as well. Just to study the decision making process, it will be interesting to learn what the cabin crew and cockpit crew hear, and what did cabin crew report to the front office of the plane.
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Old 6th Jul 2022, 22:54
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Hmmm....comms between cabin crew and cockpit crew in EK? Limited, to put it mildly.
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Old 8th Jul 2022, 11:17
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Originally Posted by KRviator View Post
IF it was to have been caused by the 'missing bolt' from the NLG, I'd have expected to see damage to the tread surface rather than the sidewall, and for the tyre to let go prior to retraction, in a similar vein to Concorde. I dunno, maybe there's some interrelation I'm not seeing...

Has anyone confirmed the claim from the AvHerald comments section that the "missing bolt photo" was indeed from 2017 and is unrelated to the tyre blowout?
Assume that the tire/tyre was damaged from running over an object but not punctured, pressure inside the tire remains constant but the pressure outside the tire decreases on climb allowing the pressure inside the tire to eventually burst the tire.
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Old 9th Jul 2022, 06:50
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Vibration sensors should be installed in different parts of fuselage surface it would have indicated vibration due to the damage made by tire burst
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Old 9th Jul 2022, 07:00
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How about 360 degree cameras in the wingtip fences instead? Might be helpful for taxi and pushback and could have some inward looks if needed. IFE use as a bonus.
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Old 9th Jul 2022, 12:30
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Vibration sensors and 360 deg cameras! Clutching at straws now!
The aircraft was flying quite normally with the only issue being a deflated tyre. There is a procedure that deals with that which the crew followed on arrival in Brisbane.
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Old 13th Jul 2022, 19:49
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Would You Continue Knowing the Damage?

SLF question if you guys don't mind. There's some discussion over how much the crew did/should have known before deciding to continue. I'm not offering an opinion, but given that the damage was non-structural and didn't affect any aircraft system, and that the crew would be aware of the blown tyre I can understand the desire to continue. If, as some have suggested, there was a camera or some such which displayed the damage to the crew, how many of you would have continued? Hindsight shows that the flight operated normally so a decision to dump fuel etc and return would have been unnecessary in this particular case, but who'd want to fly with what appears to be a gaping hole in the aetoplane?
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Old 20th Jul 2022, 18:34
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Originally Posted by Lake1952 View Post
Passengers did report a "loud bang 30-45 minutes after takeoff " according to press reports. We can assume one or more members of the cabin crew must have heard something as well. Just to study the decision making process, it will be interesting to learn what the cabin crew and cockpit crew hear, and what did cabin crew report to the front office of the plane.
I was pax on this flight and seated in front of the wing on the left side. Definitely heard that bang 30-45 min after takeoff. I did wonder what it could have been, as it was quite loud. Another pax reported that the Cabin crew all disappeared for a while then resumed normal services. I was just getting into Lord of The Rings though, so figured they'd tell us if there was a problem. Sure enough, about 45 min out of BNE they announced that we'd be stopping on the RWY and getting a tow to the gate. Of course we landed on 19R, so the the world's longest tow followed...
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