Anybody see the deliberate mistake in this story?

[blackburn_stevie]

Here is a link to it .....

http://www.bbc.co.uk/news/business-22251756

The following 2 comments don't seem to me to go together.

Nine days later, an All Nippon Airways 787 had to make an emergency landing in Japan after a battery started to give off smoke.

The two lithium-ion batteries are not used when the 787 is in flight.

So how come the batteries overheated when the aircraft was in flight??

[charliebird123]

Meybe they are still being charged and over-heated Steve

[ronnie-dog]

perhaps they were faulty

[cee-dee]

The components were prone to self combustion, a bit like spontaneous combustion.

[blackburn_stevie]

So does that mean that the words, "Not used when the 787 is in flight." mean something different to the airlines than it does to me? Because to me it means "Not being used at all in flight" as in, "Not switched on" whereas, according to some of the answers, it seems to mean, "Working away like a gud 'un but not doing the actual job that it was made for."

I don't suppose we'll ever find out which it is.

[cee-dee]

Just told ya, the components in the battery have been found to be prone to self combustion.

To do that, the battery doesn't even have to be connected never mind been in use.

It's like oily rags, normally they're harmless, put them in a pile and under the right circumstances of quantity, method of storage and temperature and they'll self combust.

The reasons for the battery fault has been published.

[al**bear]

It was the aliens

[bankhaunter]

So does that mean that the words, "Not used when the 787 is in flight." mean something different to the airlines than it does to me? Because to me it means "Not being used at all in flight" as in, "Not switched on" whereas, according to some of the answers, it seems to mean, "Working away like a gud 'un but not doing the actual job that it was made for."

I don't suppose we'll ever find out which it is.

They are there to provide emergency power to the aircraft flight systems in case of failure of the main power supply.

Presumably they would be at least on trickle charge to ensure they were at full capacity in flight.

[cee-dee]

This is what all the the fuss was about and it caused the planes to be grounded for 3 months. Some battery compartment?:-

http://www.bbc.co.uk/news/business-22319537