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ANA 787 makes emergency landing due 'battery fire warning'

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ANA 787 makes emergency landing due 'battery fire warning'

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Old 16th Jan 2013, 03:13
  #21 (permalink)  
 
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Smoke Movement

In the DC-3s we opened the cockpit windows to cool the cabin. The air flowed forward. One wide open cockpit window created quite a strong wind. Two open windows was too strong a breeze.

I would think that any fire would get worse in such a breeze.
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Old 16th Jan 2013, 03:19
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ANA, JAL

Anyone know how 'old' these planes are? And if they were some of the earlier ones off the production line, how long they might have been sitting around through some of the initial rework? With batteries installed?
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Old 16th Jan 2013, 03:30
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ANA took the first deliveries...

Last edited by FlightPathOBN; 16th Jan 2013 at 03:31.
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Old 16th Jan 2013, 03:31
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ANA plane reportedly delivered January 2012. If so one of the oldest in the fleet.
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Old 16th Jan 2013, 03:45
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@Squawk-7600 - That's not the same thing as "blaming" Boeing though, is it?

As is invariably the case these days, the components have come from all over the world, and from various suppliers - it's no different for Airbus. If ANA ground their B787s then that's a matter for them and Boeing to hash out in terms of responsibility - it's not a given that Boeing themselves are responsible for the problem, just as it's not a given that Airbus are solely responsible for any issues on their types.

[EDIT : Tempting as it may be to engage in "schadenfreude", it just makes the person that does so look like as much of an arse as the folks who do so when the boot is on the other foot. Be a grown-up - don't fall into that trap!]
I have no idea why you're addressing this to me, or even what the schadenfreude reference is in relation to. As a result of this latest incident I said that I would be surprised if the aircraft isn't grounded and have just heard on the radio that 2 operators in Japan have done just that. I get no pleasure from seeing aircraft sitting on the ground I assure you!
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Old 16th Jan 2013, 03:46
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QR

Qatar has a few 787's and if it is the battery it will be fun to see what happens there in the Summer in the Desert. It will be 50 degrees Celsius outside, 70 degrees in the E&E compartments, those babies will be Boiling!!Could be a Fireworks display if not fixed soon!
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Old 16th Jan 2013, 04:01
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''Bad batteries, nothing to do with aircraft type? How can you blame Boeing on this?''

Quite easily. I question the wisdom of encasing so many lithium-ion batteries in a plastic fuselage. If it's Boeing, I'm not going!
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Old 16th Jan 2013, 04:42
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Both ANA and JAL have now grounded their 24 aircraft.

Last edited by FlightPathOBN; 16th Jan 2013 at 04:44.
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Old 16th Jan 2013, 05:14
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Have Boeing just been too agressive in their power & weight demands of the L-ion batteries? Most battery fires appear to be caused by overly thin insulation (reduced weight) and squeezing the last milli-watt of charge (the last few percent) into the battery - necessay for mobile phones & laptops, but for planes?
Would a few grams more weight and a few hunderd less mill-watt hours per battery really make a difference on a plane?
How long do Boing expect their craft to operate in-flight without main generators, or on the ground without an APU?
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Old 16th Jan 2013, 05:52
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..both the passengers and the pilots "smelled something strange" !?

I wonder... was it before that "battery smoke" message or ~1 min after
 
Old 16th Jan 2013, 06:01
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Whoever used the term "over reaction" may not have keyed in on the presence of smoke in the cabin. Smoke in the cabin, or the smell thereof, especially when the source is unknown or inaccessible, is an immediate and dire emergency.

In a pressurized airplane, smoke will travel to the outflow valve(s). The route it will take depends on the design of the pressurization system and the configuration of the valves, but that is the only place it is going.

Last edited by BobnSpike; 16th Jan 2013 at 06:20.
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Old 16th Jan 2013, 06:25
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Only a year after launch I believe there are around 49 Boeing 787s in service. Compare this to the A380 where there were only a handfull in service and problems were fixed as they happened. All 787s problems appear to be happening together. From a public confidence point of view perhaps a softer launch of the 787 would have been less damaging to Boeing.
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Old 16th Jan 2013, 06:39
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Good thing the smoke event occured on a domestic flight rather than somewhere above Siberia or the Pacific with the next diversion airport hours away.

Since I have a seat on the HND to FRA flight little more than a week from now, I am curious as to whether ANA will cancel flights or have enough 777s to fill the gap, or worse be tempted to resume flights before the issue has been fully understood.

Last edited by BRE; 16th Jan 2013 at 06:40.
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Old 16th Jan 2013, 07:12
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Fleetwide grounding? Don't think so, it's a Boeing. FAA don't ground boeings...
But it surprises me that it remains ETOPS.

BTW if you look at the picture in this link worldnews.nbcnews , don't the slides look steeper then on older types?
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Old 16th Jan 2013, 07:15
  #35 (permalink)  
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If I remember correctly Apple had a similar problems with its very first iPhones 3, (batteries exploding and catching fire..) very quickly the company found a fix and I have not heard the problem coming back since ( or it is well kept away from news).

So it would look like a technical solution does exists.

For those discussing the way smoke moves inside an aircraft cabin/cockpit , you may want to read through some of the pages of the final report of SR111.
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Old 16th Jan 2013, 08:09
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You guys have to stop believing everything you read or hear from the media. By now one would think you all would know better.

There is no battery fire warning EICAS message in the 787 or for that matter any Boeing airplane that I know of.

In addition, the flight deck is slightly over pressurized on both the 777 and 787 so as to keep smoke and fumes out. The flight deck does not use a recirculated air source for the same reason. It actually uses 100% fresh air at all times. If there are smoke and fumes present on the flight deck, most likely the source is there as well. The battery is a long ways back in the aft EE compartment, so smelling it on the flight deck is unlikely.

The Cabin Air Compressors (CAC) have been know to overheat. Just say'n!
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Old 16th Jan 2013, 08:12
  #37 (permalink)  
 
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If talking about smoke from a L-ion battery, what does it consist of ? How poisonous is that smoke ? Does the "non-toxic" requirement for burning aircraft interior apply to batteries as well ? After all, Lithium is a strong drug!
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Old 16th Jan 2013, 08:22
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There is no battery fire warning EICAS message in the 787 or for that matter any Boeing airplane that I know of.
Likely that is true, but it would be very unusual to omit a BATT HOT caution, or similar measurement of unusual temperature from a modern airliner.

On my fight deck, unusual smell and a battery temp caution would lead me to believe my battery is getting warm. Couple that with a recent history of on-type battery over temp incidents and my minds made up
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Old 16th Jan 2013, 08:43
  #39 (permalink)  
 
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If there are smoke and fumes present on the flight deck, most likely the source is there as well. The battery is a long ways back in the aft EE compartment, so smelling it on the flight deck is unlikely.

APU battery is in the aft EE compartment. The Main Aircraft battery is a lot further forward. (I think the forward EE Compartment)

Apparently the batteries are supplied (manufactured) by a Japanese company. Oh the irony.
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Old 16th Jan 2013, 08:50
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In either case it's highly unlikely you would smell them. Read my post again
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