787 electrical fires, they keep cropping up.

[Hugo Drax]

Passengers were lucky this that that the fire started after they landed, if this would have happened midflight between Tokyo and Boston it would have been a catastrophe.

http://www.washingtonpost.com/busin...a8be80-58e8-11e2-b8b2-0d18a64c8dfa_story.html

This is one of several incidents. Any Airline mechanics care to chime in? It seems like a poor design of sorts, maybe lithium batteries?


Fire crews using infrared equipment found flames in a small compartment in the plane’s belly and had the fire out in about 20 minutes, he said. There was a flare-up later when a battery exploded, he added.


So now you have exploding batteries on airplanes.

 

[LTC8K6]

Passengers were lucky this that that the fire started after they landed, if this would have happened midflight between Tokyo and Boston it would have been a catastrophe.

http://www.washingtonpost.com/busin...a8be80-58e8-11e2-b8b2-0d18a64c8dfa_story.html

This is one of several incidents. Any Airline mechanics care to chime in? It seems like a poor design of sorts, maybe lithium batteries?


Fire crews using infrared equipment found flames in a small compartment in the plane’s belly and had the fire out in about 20 minutes, he said. There was a flare-up later when a battery exploded, he added.


So now you have exploding batteries on airplanes.

The APU is not in use in flight, so it's unlikely to have happened in flight at all.

The 787 is an all new airplane with an all new electrical system that is used in place of conventional systems. It's bound to have a lot of teething problems, just as all new types of aircraft do, such as the A380 did when it was introduced.

This appears to have been a battery problem.

 

[momeNt]

That is a lot of fires, nearly 1,000!

Any idea where these are all happening?

 

[DesiPower]

didn't they use cheap contracting company for the wiring? which delayed the delivery?

 

[LTC8K6]

didn't they use cheap contracting company for the wiring? which delayed the delivery?

Yes, and they used LEGOs to build the fuselage...

 

[DesiPower]

Yes, and they used LEGOs to build the fuselage...

Oh, I didnt know that, I though they hollowed up your mom's d1ld0 :biggrin:

 

[postmortemIA]

The fires were reason for one delay of 6 months.

 

[GTaudiophile]

Thread over at A.net.

 

[lsd]

The APU is not in use in flight, so it's unlikely to have happened in flight at all.

The 787 is an all new airplane with an all new electrical system that is used in place of conventional systems. It's bound to have a lot of teething problems, just as all new types of aircraft do, such as the A380 did when it was introduced.

This appears to have been a battery problem.

As like other Boeings, the 787 has a primary battery that is used all the time. The primary battery is usually the same part as the aux (apu) battery, so it is a concern.

 

[Hugo Drax]

As like other Boeings, the 787 has a primary battery that is used all the time. The primary battery is usually the same part as the aux (apu) battery, so it is a concern.

From what I read they are using Lithium cells instead of Nicad used in conventional aircraft.

And another fuel leak today 40 gallons.

http://www.boston.com/metrodesk/201...light-tokyo/bL83P1vSeCRjSeOfsWXlXM/story.html

 

[LTC8K6]

As like other Boeings, the 787 has a primary battery that is used all the time. The primary battery is usually the same part as the aux (apu) battery, so it is a concern.

Not all Boeing airliners have APU's.

This fire was in the battery rack for the APU.

http://seattletimes.com/avantgo/2020084827.html

We don't yet know exactly what happened.

Could have been bad battery packs.

Heck, it could have been something the cleaning crew did.

 

[Iron Woode]

thankfully it didn't end like Air Canada Flight 797 did:

http://www.pilotfriend.com/disasters/crash/aircanada797.htm

 

[ArizonaSteve]

Some interesting reading on that site. Thanks.

 

[Red Squirrel]

thankfully it didn't end like Air Canada Flight 797 did:

http://www.pilotfriend.com/disasters/crash/aircanada797.htm

Wow that's scary. I think I may have seen that on Mayday, or maybe it was another similar incident.

Seems to me airplanes should be equipped with arc fault breakers as this seems to be something that happens often enough. Guess over time loose wires inside may rub against sharp surfaces and eventually start to cut open and create a point of high resistance.

 

[Svnla]

Darn it. And I am looking forward to fly the new 787 from Houston to LAX and then back within a month or two.

 

[LTC8K6]

It's not like lithium ion batteries are new on airliners. They are used on other planes without incident.

The apu in a 787 is 1,100 horsepower...

 

[LTC8K6]

Darn it. And I am looking forward to fly the new 787 from Houston to LAX and then back within a month or two.

They will ground them if it's anything serious.

 

[Iron Woode]

Wow that's scary. I think I may have seen that on Mayday, or maybe it was another similar incident.

Seems to me airplanes should be equipped with arc fault breakers as this seems to be something that happens often enough. Guess over time loose wires inside may rub against sharp surfaces and eventually start to cut open and create a point of high resistance.

yes, it was on Mayday.

http://www.youtube.com/watch?v=8dOkBP-K0o0

 

[Hugo Drax]

They will ground them if it's anything serious.

We can count on that for sure.

 

[techs]

I don't understand how it was a Tokyo to Boston flight. I would assume that is ETOPS. Do they approve planes for ETOPS before they have accumulated shorter range experience?

 

[KillerCharlie]

I don't understand how it was a Tokyo to Boston flight. I would assume that is ETOPS. Do they approve planes for ETOPS before they have accumulated shorter range experience?

There are two parts to ETOPS certifications. The first is the type cert, which is the airplane +engine combo. Boeing already got that certification during their flight testing.

The other half of certification deals with the airlines. If the airline already has enough ETOPS experience (on other airplanes), they get quick approval for ETOPS on new types.

 

[phucheneh]

Electrical fires are kind of, you know, completely inexcusable.

It's not 'oh no, unforseen complication.'

It's 'hey, we hired some retard engineer who didn't under the concept of circuit protection devices.'

 

[LTC8K6]

The fuel leak sounds like a tank was over filled and vented some fuel. Which is what is supposed to happen.

United techs working on their 787 apparently found an improperly installed wire bundle that is for the APU.

http://blogs.wsj.com/corporate-inte...nother-dreamliner-mishap-fuel-leak-in-boston/

Looks like the 787 withstood this very well, The NTSB is opening a safety investigation.

Doesn't look too bad.

http://a.yfrog.com/img864/5582/iydvu.jpg

 

[AmdEmAll]

I love how the news is so ready to put the fear out there and attack any new airliner. Fuel leak turns out to be nothing and now the fire turns out to be minor. Oh noessss ground the 787!!111

 

[BUTCH1]

It's not like lithium ion batteries are new on airliners. They are used on other planes without incident.

The apu in a 787 is 1,100 horsepower...

Actually if you read the links the ARE new to airliners which had all been designed around Ni-cad or lead-acid batteries. Also from the report from Logan (and kinda scary)..."On Dec. 5, the FAA ordered inspections of all 36 787s in service after it received reports of fuel leaks on two aircraft operated by foreign airlines. Several incorrectly assembled fuel couplings on in-service and in-production 787s were subsequently discovered. The conditions could result in fuel leaks that could lead to a loss of power or fire, according to the FAA directive."