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Passenger Attempts To Open Door On 5G Flight  
User currently offlineAirman99o From Canada, joined Aug 1999, 975 posts, RR: 1
Posted (5 years 3 months 2 weeks 4 days 9 hours ago) and read 5876 times:

Taken From CP.24 Website.


A plane that left Grenada for Toronto on Tuesday afternoon is sitting on the ground in the Dominican Republic after an incident onboard prompted the crew to cut the flight short.

Shortly after a planned stop in Barbados to pick up more passengers, a reportedly claustrophobic passenger on Skyservice Airlines flight 828 attempted to open the plane door.

The passenger was restrained by other passengers and members of the crew. No weapons were used and no one was injured.

The crew was forced to land the plane in Punta Cana, Dominican Republic, where the agitated passenger was taken into custody by the local authorities.

The rest of the passengers -- mainly tourists who had purchased Caribbean vacation packages -- are spending the night in Punta Cana.

They are expected to arrive in Toronto on Wednesday afternoon, says a Skyservice representative, adding the flight was delayed overnight in order to bring in a fresh flight crew.

Skyservice is a Canada-based charter airline that flies to destinations in the United States, the Caribbean, Mexico and Europe.


Safety is Everyones Responsibility.
9 replies: All unread, jump to last
 
User currently offlineAloha717200 From United States of America, joined Aug 2003, 4429 posts, RR: 15
Reply 1, posted (5 years 3 months 2 weeks 2 days 23 hours ago) and read 5134 times:

Seems like this sort of thing is happening more frequently these days.

User currently offlineNQYGuy From , joined Dec 1969, posts, RR:
Reply 2, posted (5 years 3 months 2 weeks 2 days 23 hours ago) and read 5093 times:



Quoting Aloha717200 (Reply 1):
Seems like this sort of thing is happening more frequently these days.

And it always seems like these people are failing to succeed frequently these days too! Big grin


User currently offlineGlom From United Kingdom, joined Apr 2005, 2809 posts, RR: 10
Reply 3, posted (5 years 3 months 2 weeks 2 days 22 hours ago) and read 5013 times:



Quoting NQYGuy (Reply 2):
And it always seems like these people are failing to succeed frequently these days too!

That's because doors can't be opened at altitude without the help of a hydraulic jack. The pressure in the cabin seals them.

I suppose the reason this type of stuff is becoming more common is that air travel is becoming more common meaning more flakey neurotic types who will freak out on board.


User currently offlineNWADC9 From United States of America, joined May 2004, 4892 posts, RR: 10
Reply 4, posted (5 years 3 months 2 weeks 2 days 20 hours ago) and read 4848 times:

Why stop 'em? They can't open the door. Instead, we can just laugh at them at their sorry attempt and watch them sweat and put in all their effort into the impossible Big grin


Flying an aeroplane with only a single propeller to keep you in the air. Can you imagine that? -Capt. Picard
User currently offlineAg92 From India, joined Jul 2006, 1317 posts, RR: 0
Reply 5, posted (5 years 3 months 2 weeks 2 days 20 hours ago) and read 4825 times:



Quoting NWADC9 (Reply 4):
Why stop 'em? They can't open the door. Instead, we can just laugh at them at their sorry attempt and watch them sweat and put in all their effort into the impossible

That's true actually but many don't know that so if you don't help to restrain the passenger, they could arrest your for helping the guy open the door


User currently offlineFlashmeister From United States of America, joined Apr 2000, 2896 posts, RR: 6
Reply 6, posted (5 years 3 months 2 weeks 1 day 16 hours ago) and read 4357 times:
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Well, they could open the door during climb before the pressure differential is at its highest, couldn't they? Particularly on power-assisted doors?

Quoting Ag92 (Reply 5):
That's true actually but many don't know that so if you don't help to restrain the passenger, they could arrest your for helping the guy open the door

This is an interesting claim... using the same logic, though, if I don't tackle a guy with a gun robbing a convenience store that I'm in, then I'm guilty of helping him too? That could be a tough claim to make in court.


User currently offlineGlom From United Kingdom, joined Apr 2005, 2809 posts, RR: 10
Reply 7, posted (5 years 3 months 2 weeks 1 day ago) and read 4007 times:



Quoting Flashmeister (Reply 6):
Well, they could open the door during climb before the pressure differential is at its highest, couldn't they?

Well the easiest way to settle this is... QUACKULATION!

How much force do we believe the average punter could apply to the door? Let's be very generous and suggest they could bench press 150kg, aka 1.5kN. Let's then also assume an airplane door has a size of 2m³?

Okay then, so the differential pressure of the air must exert a force of no less than 1.5kN, which means that the door 750Pa to keep it secure. Even at first glance, this is already looking like a lost battle for the distressed passenger.

The pressure gradient of the atmosphere is 4Pa/ft. So the difference between cabin altitude and pressure altitude must be no less than around 200ft in order to generate sufficient pressure to keep the door closed.

The big question is, how the cabin altitude is varied with pressure altitude. If it's a case of equalisation up to cruise cabin altitude, then that means in the early stages of the climb, there is a clear threat*. If the cabin altitude is gently increased above pressure altitude from the beginning, then the window of opportunity I would saw is minimal.

*One factor I haven't included is the effect of dynamic pressure. As dynamic pressure increases with speed, static pressure drops. This means that the static pressure on the door from the outside would actually be lower than static pressure from the inside when airbourne even without cabin pressurisation. This can only work against the distressed passenger.


User currently offlineMrSkyGuy From United States of America, joined Aug 2008, 1214 posts, RR: 3
Reply 8, posted (5 years 3 months 2 weeks 18 hours ago) and read 3783 times:

Welcome to my RR list, Glom. Very informative post.


"The strength of the turbulence is directly proportional to the temperature of your coffee." -- Gunter's 2nd Law of Air
User currently offlineAg92 From India, joined Jul 2006, 1317 posts, RR: 0
Reply 9, posted (5 years 3 months 2 weeks 17 hours ago) and read 3703 times:



Quoting Flashmeister (Reply 6):
This is an interesting claim... using the same logic, though, if I don't tackle a guy with a gun robbing a convenience store that I'm in, then I'm guilty of helping him too? That could be a tough claim to make in court.

Sorry I just got that idea from watching United 93, where in the movie they showed that the crew only thought there were three hijackers but in the movie there were four cause the fourth one was actually sitting down waiting for the events to unfold


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