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-   -   A reason not to linger in the lav. (https://www.flyertalk.com/forum/practical-travel-safety-security-issues/1192917-reason-not-linger-lav.html)

Canarsie Mar 11, 2011 7:46 pm

Thread Alert
 

Originally Posted by StayingHomeIsBetter (Post 16009313)
... "for security reasons.":confused:

...which is the reason why the new home for this thread is now the Travel Safety/Security forum.

Regards,

Canarsie
Co-Moderator, Delta SkyMiles forum

LuvAirFrance Mar 11, 2011 9:38 pm

Why would anyone be so insecure as to look for oxygen masks in the lav? It is not as if its a place to RIDE. At most it offers emergency relief.

Kremmen Mar 11, 2011 10:23 pm


Originally Posted by BobRoss (Post 16010584)
Is it more likely that a bad person would use the oxygen generator to blow a hole in the plane than someone dying from an explosive decompression? Difficult to say, but given that both probabilities are so infinitesimally small, we're really discussing pin heads and angels here.

Not really difficult to say.
Number of rapid decompression accidents worldwide per year: 40-50.
Number of terrorist attacks using oxygen generators: 0.
(see Gizmodo Article)

Looks like yet another example of how much work the FAA and TSA put into discouraging US tourism.

FriendlySkies Mar 11, 2011 11:39 pm

A said before, Security>Common Sense :td:

LuvAirFrance Mar 12, 2011 1:24 am

Any numbers on rapid descents with passenger in lavatory?

4nsicdoc Mar 12, 2011 8:05 am


Originally Posted by RatherBeOnATrain (Post 16009673)
Oxygen is flammable.

Think of what could have happened had the shoe-bomber been smart enough to lock himself in the lavatory, where there was a convenient source of oxygen directly above him.

(Mods - this probably should be in the travel safety & security forum.)

The real danger (notice I did NOT say realistic danger) is that the oxygen that flows to the mask is produced by an oxygen generator, and is not contained in a compressed oxygen tank, except for cockpit crew. The oxygen is produced by burning, yeah burning varieo peroxides or perchlorates such as barium peroxide or potassium perchlorate. The burning canister can reach 500 degrees F. Too see a possible result, Google Valuejet Flight 592, or ATA Flight 131 at Ohare.

4nsicdoc Mar 12, 2011 8:16 am


Originally Posted by xolinlevh (Post 16009870)
so if the pressure in the cabin drops, and your in the lav, wouldnt the pressure difference between the closed lav and the cabin create a large differential that would hold the door closed, preventing you from opening it easily in order to reach a mask outside the lav? Thereby ensuring that anyone IN the lav at the time will probably die?

Only if the hole causing the decompression is in the lav. Most decompressions are not explosive but, rather, are slow leaks caused by a stuck or malfunctioning outflow valve in the main pressure vessel, the cabin.
Now if someone is really paranoid they could get a Rx for medical supplemental O2 and carry a bail-out bottle to the lav with them. But it's really unnecessary. At 35,000 feet, a complete loss of pressurization will still leave you about 30-60 seconds of useful consciousness. At 30,000 feet, it's 1-3 minutes. See, ^ Mark Wolff (2006-01-06). "Cabin Decompression and Hypoxia". theairlinepilots.com. http://www.theairlinepilots.com/medi...andhypoxia.htm.

peachfront Mar 12, 2011 3:55 pm

Don't say that to GRITS (girls raised in the south)!!!


Originally Posted by fti (Post 16010770)
Glad Coke works for you but that is one of the worst "hydration" liquids available.


HKG_Flyer1 Mar 12, 2011 8:48 pm


Originally Posted by SamuelS (Post 16010171)
...it's long been the case that you are 'safer' in many respects on certain foreign carriers as opposed to being on a US carrier, due mainly to the shortsightedness of the respective US regulatory bodies. For instance, on a European carrier's longhaul flights, the crew members will have been trained by the airline to a far greater level of aviation medical training than in the US, not too mention the equipment carried is superior and can also be accessed by the crew (doctors box etc).

Likewise for infant restraint belts - carried for years by European carriers, but the advice in an emergency from US carriers - put your baby on the floor, hold on, and hope they survive if you have to make an emergency landing.

And, we are spared the inane speech about how the flight attendants are aboard "primarily for our safety"!

greentips Apr 2, 2011 4:44 am

Test of new FAA AD?
 
SWA Explosive decompression
Was anyone in the lavs?

Flight info: FL 360 to 11,000 feet rapid descent. O2 no longer needed for most healthy people around 15k feet. For people with lung problems, lower.

Assuming structural integrity cannot be assured from the flight deck, recommended max speed is 320 kts. Descent rate between 3500 and 4000 ft/min. (36000 - 15000)/4000 = 5.25 minutes. People will pass out in lavs.

Terrorist attacks in the last year: 0
Cabin depressurizations in the last year: 2

LuvAirFrance Apr 2, 2011 5:19 am

I'm imagining Richard Reid down in the waste tank. Now that would be poetic justice. Of course, he also could get sucked out of the hole he might have made.

studentff Apr 2, 2011 6:16 am


Originally Posted by greentips (Post 16146431)
SWA Explosive decompression
Was anyone in the lavs?

Flight info: FL 360 to 11,000 feet rapid descent. O2 no longer needed for most healthy people around 15k feet. For people with lung problems, lower.

Assuming structural integrity cannot be assured from the flight deck, recommended max speed is 320 kts. Descent rate between 3500 and 4000 ft/min. (36000 - 15000)/4000 = 5.25 minutes. People will pass out in lavs.

Terrorist attacks in the last year: 0
Cabin depressurizations in the last year: 2

This incident seems like a golden opportunity to humiliate FAA and DHS for their absurd choice to put irrational terrorism paranoia over serious (and much more probable) safety concerns.

Any ideas on how to leverage it?

MikeMpls Apr 2, 2011 7:52 am


Originally Posted by greentips (Post 16146431)
Was anyone in the lavs?

Quite likely:


Originally Posted by Detroit News
The plane, which was carrying 118 people, landed at a military base in Yuma without any injuries reported, according to the airline. Reese said a flight attendant fell and injured his nose, and said some people "were passing out because they weren't getting the oxygen."

This is the first report I've read of a decompression (excepting a couple cases which resulted in crashes) where people were passing out. As some of the passengers inevitably retain personnel-injury lawyers, the missing oxygens masks are likely to get some attention.

greentips Apr 2, 2011 7:54 am


Originally Posted by studentff (Post 16146620)
This incident seems like a golden opportunity to humiliate FAA and DHS for their absurd choice to put irrational terrorism paranoia over serious (and much more probable) safety concerns.

Any ideas on how to leverage it?

Excellent question.

My letter to the editor of the Detroit News:

Recently the FAA at the demand of the TSA/DHS issued an emergency airworthiness directive to U.S. air carriers requiring the airlines to remove emergency oxygen systems from the aircraft lavatories. As your article states, some passengers in seats with oxygen masks available could not respond quickly enough and suffered hypoxia in this incident.

An unrestrained passenger in a lavatory during such an emergency requires immediate access to oxygen to potentially avoid serious injury as the aircraft abruptly enters a steep dive to get the aircraft back to breathable air, further exposing an unconscious passenger to risk.

The FAA and TSA issued the airworthiness directive because they were concerned that a terrorist might attempt to access the device in flight causing harm to the aircraft. A simple alarm similar to lav smoke detectors would suffice without removing the added safety of lav oxygen in an event such as this. There have been two serious decompressions in the last half year, requiring oxygen for passengers, and zero terrorist attacks using on board oxygen systems. Why doesn't the TSA care about our safety?

Polar Man Apr 2, 2011 9:02 am

"One flight attendent and several passengers passed out either they couldn't get their mask or they weren't working"
you have to sit through a comercial first before the clip.

Way to go DHS and shame on the FAA for going along with this foolishness. F'ing morons:td:


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