What sort of extinguisher can be relied apon to put out a LiPo on Fire?
On Fri, Sep 29, 2017 at 8:35 PM, Noel Roediger
<<mailto:[email protected]> [email protected]> wrote:
Interesting.
But the report doesn'tÃÂ really tell us
anything we don't know about LiPo's.
SR 018, 019 and 020 are as useless as TOAB
without requiring an extinguisher to be carried - and there is none.
I understand some manufacturers of SLS's
already incorporate fire warning systems but without extinguisher backup.
Not with-standing, it must be realized that any type of battery can explode.
I look forward to the AAIB report on the
certification process followed by EASA.
Noel.
-----Original Message-----
From: Aus-soaring [
mailto:[email protected]] On Behalf Of Justin Couch
Sent: Friday, September 29, 2017 5:33 PM
To: <mailto:[email protected]>[email protected]
Subject: Re: [Aus-soaring] FES fire in the UK
Here's the actual AAIB report:
<https://assets.publishing.service.gov.uk/media/59c8f175e5274a49c07f4704/AAIB_S3-2017_G-GSGS.pdf>https://assets.publishing.service.gov.uk/media/59c8f175e5274a49c07f4704/AAIB_S3-2017_G-GSGS.pdf
On 29/09/2017 7:02 AM, Future Aviation Pty. Ltd. wrote:
> Good morning all
>
> This was sent to me over night by a German friend of mine.
>
> As you can see, no mention was made of the type of battery used here.
>ÃÂ From my visits to the AERO trade fair I
know that some manufacturers use LiPo Batteries.
> They have the best power to weight ratio but
they are known to be extremely dangerous.
> I will attempt to find out if this type of
battery was installed in this glider.
>
> Kind regards to all
>
> Bernard
>
>>ÃÂ From UK, newspaper report:
>>
>>
>>
>>
>> The Air Accidents Investigation Branch has
made a safety recommendation after a sailplane
burst into flames shortly after landing in
Parham Airfield. On August 10, 2017, the
glider sailplane set off from the airfield
between Storrington and Pulborough at 10.21am
for a flight lasting approximately two hours.
The glider was flown normally to a smooth
touchdown, according to the AAIB, until the
pilot heard an âunexpected noiseâ. The
AAIB repIB report said: âAs the glider
slowed during the ground run, the pilot
smelled burning and the cockpit filled with
smoke that was moving forwards from behind the
pilotâââ¢s head. âHe vacated the cockpit
normally, without injury, and observed that
the Front Electric Sustainer (FES) battery
compartment cover was missing and that smoke,
followed shortly by flames, was coming from
the battery compartment. âThe airfield fire
truck arrived promptly y and an initial
attempt was made to extinguish the fire using
a CO2 gaseous extinguisher, but this proved
unsuccessful. âAqueous film-forming foaoam
(AFFF) was then sprayed into the FES battery
compartment and the fire was extinguished.â
>>
>>
>> The pilot was the only person on board the
glider, according to the AAIB.
>>
>> He did not report observing any warning
messages or illuminated LEDs, when asked by
the AAIB, although his attention was drawn outside the cockpit during landing.
>>
>> The AAIB report found existing FES battery
installations âdo not provide sufficient
warningââ¬â¢ to a pilot of a fire.
>>
>> As a result, the AAIB made a safety
recommendation that âall powered sailplanes
fitted with an FES system, mustst be equipped
with a warning system to alert the pilot to
the presence of a fire in the FES battery compartmentâ.
>
>>
>> The AAIB investigation confirmed the
âËËorigin of the fireâ was the forward FES battery.
>
>>
>> The report added: âIts battery box wawas
ruptured along the rear left corner and the
battery assembly was heavily fire damaged.
>>
>> âThe rear FES battery box suffered
frfrom external fire damage although the
internal components were only slightly damaged and the cells remained charged.
>>
>> âThe FES battery compartment was heavavily fire damaged.
>>
>>
>>
>> see also
>>
>>
<https://www.gov.uk/aaib-reports/aaib-special-bulletin-s3-2017-on-hph->https://www.gov.uk/aaib-reports/aaib-special-bulletin-s3-2017-on-hph-
>> glasflugel-304-es-g-gsgs
>> < https://www.gov.uk/aaib-reports/aaib-special-bulletin-s3-2017-on-hph
>> -glasflugel-304-es-g-gsgs>
>>
<http://www.front-electric-sustainer.com/news.php>http://www.front-electric-sustainer.com/news.php
>> < http://www.front-electric-sustainer.com/news.php>
>>
<http://publicapps.caa.co.uk/docs/33/20170906EASAAD20170167E.pdf>http://publicapps.caa.co.uk/docs/33/20170906EASAAD20170167E.pdf
>> < http://publicapps.caa.co.uk/docs/33/20170906EASAAD20170167E.pdf >
--
Justin
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ÃÂ ÃÂ Ã
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