Originally posted by Highkeas
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Another 787 Fire this time at LHR
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I use a big range of different types of batteries, usually at the extremes of performance. Every now and again, one fails. The more spectacular failures are indeed heat runaway and the odd LiPo that goes pop!
Not great when I lose an airframe, but no one gets hurt. I always worried about the use of these things in real aircraft and just assumed that clever folk had figured out how to make them as reliable as any other component on part 121 aircraft.
Charging is usually the time when things go pop while high current use triggers the heat runaway. So wondering exactly what went wrong on this one.
Fire resilient fuselage is good news, especially for structural integrity. Doesn't make it easy for fire services and I wonder how hard it is to break through to access fires. Lots of interesting scenarios and again, wondering what it will do to survivability.
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Originally posted by Dispatch Dog View Post..........Charging is usually the time when things go pop while high current use triggers the heat runaway. So wondering exactly what went wrong on this one.
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What triggers an ELT to start emmitting signals?
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Originally posted by Highkeas View PostFrom what I have read the ELTs do not use rechargeable batteries.
What triggers an ELT to start emmitting signals?If it 'ain't broken........ Don't try to mend it !
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FAA ELT Airworthiness Directive
Here's the latest: The FAA has issued an Airworthiness Directive requiring airlines to ensure that the ELT batteries are safe:
http://www.faa.gov/news/press_releas...m?newsId=14233The "keep my tail out of trouble" disclaimer: Though I work in the airline industry, anything I post on here is my own speculation or opinion. Nothing I post is to be construed as "official" information from any air carrier or any other entity.
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In the last day or so an Air India 787 reported that a galley oven was smoking and the cabin crew responded by removing power and using a fire extinguiser.
This made me wonder whether Boeing switched to a different or thinner insulation on 787 wiring in order to save weight.
(Of course the oven smoke might have been due to a meal container or other item melting or burning.)
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Originally posted by snydersnapshots View PostHere's the latest: The FAA has issued an Airworthiness Directive requiring airlines to ensure that the ELT batteries are safe:
http://www.faa.gov/news/press_releas...m?newsId=14233
That appears to me to be the AD from the ANA flight.Preferring not to be the subject of a thread
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Originally posted by Highkeas View Post
Hence, I very much doubt your theory sir.
However, heat from external cables could well be the cause, we will have to await the outcome.
Maybe we shoud start calling it the Flarebus or Screamliner ???
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