Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

bluedigger

(17,086 posts)
Thu Jun 7, 2012, 10:19 AM Jun 2012

Vacuum cleaner may have caused $400 million fire on nuclear sub

Source: Associated Press

KITTERY — Preliminary findings from Navy investigators suggest a fire aboard a dry-docked submarine started in a vacuum cleaner used by shipyard workers, officials said Wednesday. The Navy also confirmed a preliminary estimate of $400 million for repairs.

A statement from the Portsmouth Naval Shipyard said the vacuum was used by workers to clean up after each shift and was stored in an unoccupied space when the fire started.

The repair cost estimate allows the Navy to begin lining up funding.

The Navy estimated that an additional 10 percent cost — or $40 million more — would be needed to account for disruption to other planned work across all naval shipyards and for potential assistance from private sector contractors, the shipyard said.

Read more: http://www.sunjournal.com/news/maine/2012/06/07/vacuum-cleaner-may-be-cause-400-million-fire-nucle/1206706



Maybe we could have a bake sale or something to help out.
38 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Vacuum cleaner may have caused $400 million fire on nuclear sub (Original Post) bluedigger Jun 2012 OP
There are no words....other than, 'How in the hell..." nt snappyturtle Jun 2012 #1
If the vaccum cleaner was being used to MicaelS Jun 2012 #3
Even HEPA filters? mahatmakanejeeves Jun 2012 #6
I was thinking along the same lines. bluedigger Jun 2012 #8
HEPA filter labels can be misleading MicaelS Jun 2012 #12
Often the HEPA filter will be at the exhaust port, so after the air has passed through the motor. AtheistCrusader Jun 2012 #20
I had no idea, thanks! Then again I can't imagine what snappyturtle Jun 2012 #35
We were always required to take all "gear" off the ship at the end of the installation shift - haele Jun 2012 #14
Thanks for sharing your expert opinion. n/t TexasProgresive Jun 2012 #19
It's all the machine's fault slackmaster Jun 2012 #2
I believe it. earthside Jun 2012 #4
Hoover Wind Tunnel mahatmakanejeeves Jun 2012 #7
I have to agree with you on that. The only issue I have with mine is durability. slackmaster Jun 2012 #11
I have a Bissell Cleanview Bagless.. MicaelS Jun 2012 #15
Sue the manufacturer? mbperrin Jun 2012 #5
Could have been a perfectly fine vaccum cleaner, used incredibly improperly. AtheistCrusader Jun 2012 #21
Would have to be pretty incredibly improperly. I'm 60, been vacuuming since my mom mbperrin Jun 2012 #22
This is a shipyard. AtheistCrusader Jun 2012 #23
Portsmouth Naval Shipyard. bluedigger Jun 2012 #29
Never know. AtheistCrusader Jun 2012 #31
Vaccum cleaners as weapons tinrobot Jun 2012 #9
That would never happen with an Electrolux! bluedigger Jun 2012 #10
I miss our old Electrolux "torpedo" TexasProgresive Jun 2012 #18
I was just at the National Museum in Stockholm waddirum Jun 2012 #36
Heh heh heh alcibiades_mystery Jun 2012 #13
Should've bought a Dyson obamanut2012 Jun 2012 #16
Navy Photo of the vacuum cleaner in use before the incident Ichingcarpenter Jun 2012 #17
Had the govamint' bought my $69,000 "Eagle of Freedom" nuclear sub vacuum.... Evasporque Jun 2012 #24
We should probably discuss that in private. bluedigger Jun 2012 #25
This is EXACTLY why I will not vacuum PossumSqueezins Jun 2012 #26
The cost of this is PBS's ENTIRE yearly budget. Xedniw Jun 2012 #27
Well. That sucks. LiberalEsto Jun 2012 #28
I suspect a cordless model.. LunaSea Jun 2012 #30
John McCain's been reduced to vacuuming subs? KamaAina Jun 2012 #32
Vacuum cleaner purchased GSA schedule from low bid contractor SkatmanRoth Jun 2012 #33
The $400 hammer ended the conflagration may3rd Jun 2012 #34
In fairness, that was a cover for the entire toilet system slackmaster Jun 2012 #37
Aren't sailors supposed to spend most of their time sweeping/mopping anyway? 4th law of robotics Jun 2012 #38

MicaelS

(8,747 posts)
3. If the vaccum cleaner was being used to
Thu Jun 7, 2012, 10:38 AM
Jun 2012

Vacuum up extremely fine material, especially particles that were electrically conductive, like metal shavings, this material may have been too small to be trapped by the filter or bag, and passed through and caused a short in the vacuum motor. This could have started the fire, and since ships and submarines are full of flammable material this could have resulted in the fire spreading like it did.

For example, in a business environment, you can't use a conventional floor or canister vacuum to vacuum up spilled laser printer / copier toner. The toner particles are too small and will go right through the filter or bag, and being electrically conductive can short the motor.

mahatmakanejeeves

(57,489 posts)
6. Even HEPA filters?
Thu Jun 7, 2012, 10:45 AM
Jun 2012

Last edited Thu Jun 7, 2012, 11:55 AM - Edit history (1)

I'm not disputing your guess; just wondering.

I was thinking that somehow the workers had vacuumed up some slag left over from welding. The bits were still hot and caused adjacent dust in the bag to ignite. I'm am led to think this by the many house fires I hear about every winter caused by ashes being left in a grocery bag or trash can. The residents think that the ashes are cold, but there's this one warm cinder in the bag they don't know about.

Thanks for the plausible method by which this could have occurred.

bluedigger

(17,086 posts)
8. I was thinking along the same lines.
Thu Jun 7, 2012, 10:51 AM
Jun 2012

The vacuum would have been unplugged in storage, but perhaps not emptied, and a smoldering fire started in it.

MicaelS

(8,747 posts)
12. HEPA filter labels can be misleading
Thu Jun 7, 2012, 11:11 AM
Jun 2012
http://en.wikipedia.org/wiki/HEPA_filter

To qualify as HEPA by US government standards, an air filter must remove 99.97% of all particles greater than 0.3 micrometer from the air that passes through. A filter that is qualified as HEPA is also subject to interior classifications.


Laser toner particulate size is 8-10 micrometers, so theoretically a vacuum with a HEPA filter SHOULD catch the toner. But....

For a HEPA filter in a vacuum cleaner to be effective, the vacuum cleaner must be designed so that all the air drawn into the machine is expelled through the filter, with none of the air leaking past it. This is often referred to as "Sealed HEPA" or sometimes the more vague "True HEPA." Vacuum cleaners simply labeled HEPA have a HEPA filter, but not all air necessarily passes through it. Finally, vacuum cleaner filters marketed as "HEPA-like" will typically use a filter of a similar construction to HEPA, but without the filtering efficiency. Because of the extra density of a HEPA filter, HEPA vacuum cleaners require more powerful motors to provide adequate cleaning power.


Then there's this: http://en.wikipedia.org/wiki/Toner

Static discharge from charged toner particles can ignite dust[citation needed] in the vacuum cleaner bag or create a small explosion if sufficient toner is airborne.


If they were using an ordinary household vacuum, with all the plastic parts, as opposed to some sort of specialty vacuum, like a shop vac with a metal dust container, that could have caused it. I did not think of the dust explosion theory.

And I like your idea of welding slag causing the fire, I didn't think of that, either.

haele

(12,660 posts)
14. We were always required to take all "gear" off the ship at the end of the installation shift -
Thu Jun 7, 2012, 11:16 AM
Jun 2012

Tool boxes, welding machines, test gear, collected trash - all had to be hauled off every day. We had to sweep and clean, and empty all trash collecting devices that would be left on the ship - including ship's cleaning items that we might be useing, such as trash cans, mop buckets and vacuum cleaners.
We were required by contract to keep the ship area we were working in clean and the only things we were allowed to leave on the ship unattended after our work shift was cable we might be in the process of running, test gear that was still running overnight tests, bypass gear, or the hardware and equipment we were installing.

Sounds as if it were a shipyard issue.

Haele

earthside

(6,960 posts)
4. I believe it.
Thu Jun 7, 2012, 10:40 AM
Jun 2012

I'm shopping for a new vacuum cleaner right now.

Man ... what an imperfect, flawed piece of everyday technology.

Every review, every conversation, every report on vacuum cleaners reveals something wrong with their operation.

In the 21st century it is amazing that no one has apparently constructed a reasonably-priced vacuum cleaner that works reasonably well for at least three or four years.

So, frankly I'm not surprised that it was the vacuum cleaner's fault.

(Of course, if someone knows of good vacuum cleaner, let me -- and the Navy -- know right away.)

 

slackmaster

(60,567 posts)
11. I have to agree with you on that. The only issue I have with mine is durability.
Thu Jun 7, 2012, 11:10 AM
Jun 2012

A lot of it is made of plastic resins, and it's starting to deteriorate.

But it does a terrific job in cat hair and dander.

MicaelS

(8,747 posts)
15. I have a Bissell Cleanview Bagless..
Thu Jun 7, 2012, 11:24 AM
Jun 2012

I've been using for 10 years. I don't have pets, but it's still a great vacuum.

My tips:

(1) Get a bagless vacuum, no question.
(2) When you buy the vacuum, buy an extra belt and one extra of each filter.

From everything I've read Dyson is the best out there. Expensive, but the best. Of course you can buy 2-4 cheaper vacuums for the price of one Dyson.

mbperrin

(7,672 posts)
5. Sue the manufacturer?
Thu Jun 7, 2012, 10:40 AM
Jun 2012

Worth a try. At least give us the name so we'll know whose cheap shit cost us hundreds of millions.

mbperrin

(7,672 posts)
22. Would have to be pretty incredibly improperly. I'm 60, been vacuuming since my mom
Thu Jun 7, 2012, 01:04 PM
Jun 2012

put me to it at age 5 and have never seen a wisp of smoke.

So find the operator and sue them, too.

AtheistCrusader

(33,982 posts)
23. This is a shipyard.
Thu Jun 7, 2012, 01:20 PM
Jun 2012

There's all sorts of volatile, and flammable material you'd never find in a residential home.

More than likely, the shipyard will be sued. So that's covered.

bluedigger

(17,086 posts)
29. Portsmouth Naval Shipyard.
Thu Jun 7, 2012, 02:52 PM
Jun 2012

"Established on 12 June 1800 during the administration of President John Adams, the Portsmouth Naval Shipyard is the oldest continuously-operating shipyard in the United States Navy." http://en.wikipedia.org/wiki/Portsmouth_Naval_Shipyard

We probably won't be suing ourselves.

AtheistCrusader

(33,982 posts)
31. Never know.
Thu Jun 7, 2012, 04:31 PM
Jun 2012

Sometimes money needs to be moved from one budget to another, or an insurance policy can be exercised.

TexasProgresive

(12,157 posts)
18. I miss our old Electrolux "torpedo"
Thu Jun 7, 2012, 12:33 PM
Jun 2012

That thing would suck the socks right off your feet. What a vac. We have a Miele White Star which is very good but I just love the look of the old Electoluxes.

waddirum

(979 posts)
36. I was just at the National Museum in Stockholm
Fri Jun 8, 2012, 11:55 AM
Jun 2012

where they had a floor dedicated to modern design, chairs, appliances, etc.

The Electrolux models were awesome.

Evasporque

(2,133 posts)
24. Had the govamint' bought my $69,000 "Eagle of Freedom" nuclear sub vacuum....
Thu Jun 7, 2012, 01:20 PM
Jun 2012

They would of saved taxpayers millions....

sheesh....

PossumSqueezins

(184 posts)
26. This is EXACTLY why I will not vacuum
Thu Jun 7, 2012, 02:30 PM
Jun 2012

When people complain of the dust in my home, I will simply point to this article and the associated risks of fire and possible nuclear explosion.

LunaSea

(2,894 posts)
30. I suspect a cordless model..
Thu Jun 7, 2012, 03:40 PM
Jun 2012

With a battery issue.

My quick search didn't reveal any widely known issues with cordless appliances, but appliance fire stats are rather disturbing considering that only half of appliance fires are attributed to human error, animals, or storms.

"The Consumer Product Safety Commission, using estimates from 2006 through 2008, says that major appliances caused more than 150,000 residential fires each year, resulting in 3,670 injuries, 150 deaths, and $547 million dollars in property damage."

"More than 15 million appliance units have been recalled in the past five years for defects that could cause a fire, according to our analysis of CPSC records, with 1,942 incidents reported. Almost half of the recalled units were dishwashers, and the CPSC told us that it is investigating the problem."

http://www.consumerreports.org/cro/magazine/2012/03/appliance-fires-is-your-home-safe/index.htm

SkatmanRoth

(843 posts)
33. Vacuum cleaner purchased GSA schedule from low bid contractor
Thu Jun 7, 2012, 06:56 PM
Jun 2012

Item was manufactured in a right to work state by non-union employees.

 

may3rd

(593 posts)
34. The $400 hammer ended the conflagration
Thu Jun 7, 2012, 09:36 PM
Jun 2012

all the toilet seat suffered smoke damage and unfortunately, must be replaced in lieu of events

Latest Discussions»Latest Breaking News»Vacuum cleaner may have c...