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744 Upper Deck Exit Question  
User currently offlineSafetyDude From United States of America, joined Sep 2001, 3795 posts, RR: 14
Posted (12 years 3 months 2 weeks 2 days 6 hours ago) and read 3234 times:

Hi all,
In this picture showing door 6R of a Korean Airlines 744, at the bottom there are two square-ish shapes that appear to be on hinges.

Could someone tell me what they are?


[Edited 2004-02-18 01:21:39]

"She Flew For What We Stand For"
3 replies: All unread, jump to last
User currently offline747Teach From United States of America, joined Nov 2000, 176 posts, RR: 1
Reply 1, posted (12 years 3 months 2 weeks 1 day 18 hours ago) and read 3129 times:

SafteyDude: Those are pressure relief panels. "Any attempt to pressurize the cabin when the door is not fully latched will overcome the spring load, cause the panels to open, and prevent pressurization." 747-400 AMM, 52-23-00, Pg. 1, Para. 3. Regards,

User currently offlineSafetyDude From United States of America, joined Sep 2001, 3795 posts, RR: 14
Reply 2, posted (12 years 3 months 2 weeks 12 hours ago) and read 2986 times:

I take it that the panels open directly (i.e. outside air comes in) so that the plane cannot be pressurized at all?

Some more info would be great.


"She Flew For What We Stand For"
User currently offlineRendezvous From New Zealand, joined May 2001, 543 posts, RR: 0
Reply 3, posted (12 years 3 months 1 week 6 days 8 hours ago) and read 2859 times:

You can see similar things on the cargo doors of most planes too. From what I've seen they shut the cargo door then hit a lever that closes those pressure doors.

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