KaiGywer From United States of America, joined Oct 2003, 12027 posts, RR: 43 Reply 1, posted (2 years 5 months 2 weeks 4 days 23 hours ago) and read 28269 times:
I'm too lazy to translate it myself, so here is the Google version - There is a so-called inspection door that sits outside of the fuselage behind the left wing, said Lars Christoffersen, accident inspector from AIB to Nordvestnyt.dk
...
The door provides access to the aircraft's hydraulic system C, and the loss of the result, according to Lars Christoffersen, no danger to passengers.
- The door has a total of eight locks, so we have no idea how it could break loose, "says Lars Christoffersen Ritzau.
He describes the door weight as "not exceeding 20 kg." It was located behind the left wing, where - until it was turned into a free floating air missile - protected aircraft's hydraulic system for wind and weather.
LAXtoATL From United States of America, joined Oct 2009, 1563 posts, RR: 2 Reply 2, posted (2 years 5 months 2 weeks 4 days 22 hours ago) and read 27915 times:
Probably should clarify in thread title what type of door. I assumed a pax boarding door flew off in flight!
This would more appropriately be labeled an external access panel.
FXramper From United States of America, joined Dec 2005, 7027 posts, RR: 93 Reply 3, posted (2 years 5 months 2 weeks 4 days 22 hours ago) and read 27602 times:
N722TW lost a hydraulic access door that roughly measures 4'x3'. That door weighs about 50 lbs. Wonder where they lost it?
7673mech From United States of America, joined Mar 2004, 632 posts, RR: 0 Reply 6, posted (2 years 5 months 2 weeks 4 days 20 hours ago) and read 26123 times:
chrisair From United States of America, joined Sep 2000, 1774 posts, RR: 4 Reply 7, posted (2 years 5 months 2 weeks 4 days 19 hours ago) and read 24869 times:
Quoting PipoA380 (Reply 5): Falling 4'000 meters? That's a speed of 900km/h when it reaches the ground!
It won't be falling that fast. It'll hit terminal velocity well before it reaches 900 km/h. I think it's somewhere around ~18 m/s using the 10 lb door. Even 20 kg it's only ~38 m/s, or 85 mph.
That being said I wouldn't want it to fall on my house, car or me!
canyonblue17 From United States of America, joined Oct 2008, 365 posts, RR: 0 Reply 8, posted (2 years 5 months 2 weeks 4 days 18 hours ago) and read 22748 times:
Quoting chrisair (Reply 7): It won't be falling that fast. It'll hit terminal velocity well before it reaches 900 km/h. I think it's somewhere around ~18 m/s using the 10 lb door. Even 20 kg it's only ~38 m/s, or 85 mph.
If my complex calculations are correct if the door was doing "only" 85mph instead of 900km/hr when it hit me on the ground the result is likely to be the same......death. One death would simply be a fraction of a second slower than the other.
litz From United States of America, joined Dec 2003, 1745 posts, RR: 0 Reply 9, posted (2 years 5 months 2 weeks 4 days 17 hours ago) and read 21519 times:
Don't forget ... this is a door .... a large squarish flat (or slightly curved) object.
It won't fall like a brick, more like a leaf.
Still wouldn't want to be under it, but I doubt it's going to plow into the ground like a meteorite ...
JetBlue777 From United States of America, joined Jul 2009, 1427 posts, RR: 1 Reply 10, posted (2 years 5 months 2 weeks 4 days 17 hours ago) and read 21110 times:
Quoting LAXtoATL (Reply 2):
Probably should clarify in thread title what type of door. I assumed a pax boarding door flew off in flight!
This would more appropriately be labeled an external access panel.
same, I thought It was a passenger door, that would be terrifying for the passengers...and who knows what will it hit on the ground..
KaiGywer From United States of America, joined Oct 2003, 12027 posts, RR: 43 Reply 11, posted (2 years 5 months 2 weeks 4 days 16 hours ago) and read 20059 times:
Interesting thing is...the plane arrived and departed CPH on time
OYJFC From Denmark, joined Oct 2005, 4 posts, RR: 0 Reply 12, posted (2 years 5 months 2 weeks 4 days 16 hours ago) and read 19570 times:
My first post in this forum.
The incident happened on 20 November this year where N722TW was flying DL118 (JFK to CPH). At the time of the incident the plane was descending towards CPH flying around 10000 feet. The plane landed safely in CPH and it was here the missing piece was discovered. The plane was flown back to JFK 2 days later as DL9934.
worldliner From United Kingdom, joined Aug 2005, 275 posts, RR: 0 Reply 13, posted (2 years 5 months 2 weeks 4 days 15 hours ago) and read 18282 times:
I thought a passenger door had flown off or something by the title!
Did the plane turn around or did it continue to NYC
DocLightning From United States of America, joined Nov 2005, 16824 posts, RR: 57 Reply 14, posted (2 years 5 months 2 weeks 4 days 14 hours ago) and read 17787 times:
Quoting litz (Reply 9):
It won't fall like a brick, more like a leaf.
Well, until it turns sideways. Then it'll drop like a rock.
adxmatt From United States of America, joined Jul 2006, 933 posts, RR: 2 Reply 15, posted (2 years 5 months 2 weeks 4 days 14 hours ago) and read 17452 times:
Quoting worldliner (Reply 13): Did the plane turn around or did it continue to NYC
It was JFK-CPH...
The pilot probably never even knew he lost it until after landing and ground staff asks what heppened.
Maverick623 From United States of America, joined Nov 2006, 4744 posts, RR: 6 Reply 17, posted (2 years 5 months 2 weeks 4 days 14 hours ago) and read 16893 times:
Quoting DocLightning (Reply 14):
Well, until it turns sideways. Then it'll drop like a rock.
Nope. I am very familiar with the door in question, and it's curved to the shape of the fuselage. It'll tumble, but it won't stay sideways.
Aesma From France, joined Nov 2009, 4792 posts, RR: 9 Reply 18, posted (2 years 5 months 2 weeks 4 days 12 hours ago) and read 15134 times:
Quoting JetBlue777 (Reply 10): same, I thought It was a passenger door, that would be terrifying for the passengers...and who knows what will it hit on the ground..
The first time it's strange, then you get accustomed to it.
What, we weren't talking about skydiving ?
I was wondering how such a door could be that heavy, it doesn't hold pressure and as all things in a plane it has to be designed as light as possible.
New Technology is the name we give to stuff that doesn't work yet. Douglas Adams
soon7x7 From United States of America, joined May 2006, 2800 posts, RR: 14 Reply 20, posted (2 years 5 months 2 weeks 4 days 11 hours ago) and read 14150 times:
Thats awfully heavy for an access door. They are usually composite these days and are very light (especially if 8 hartwell latches secure it)...an alloy over wing emergency exit is far more substantial and barely makes 50 lbs. It really is nothing more than a streamlining fairing. It would just flutter down to earth like a giant leaf.
brdcessna From United States of America, joined Jul 2006, 62 posts, RR: 0 Reply 21, posted (2 years 5 months 2 weeks 4 days 11 hours ago) and read 14084 times:
Quoting Grid (Reply 16): It would be cool if it landed in your yard, although I suppose you'd have to give it back.
flyingalex From Germany, joined Jul 2010, 1005 posts, RR: 1 Reply 23, posted (2 years 5 months 2 weeks 4 days 6 hours ago) and read 10907 times:
Quoting AY-MD11 (Reply 22): hmm... How did they know that it drop at 4000 meters?
Since they found the missing part, it's fairly easy to estimate the altitude from the location of the village in which the door landed. When passing X, the plane should be at Y feet.
Public service announcement: "It's" = "it is". To indicate posession, write "its." Looks wrong, but it's correct grammar
robffm2 From Germany, joined Dec 2006, 1094 posts, RR: 0 Reply 24, posted (2 years 5 months 2 weeks 4 days 5 hours ago) and read 10326 times:
Quoting adxmatt (Reply 15):
The pilot probably never even knew he lost it until after landing and ground staff asks what heppened.
Quoting AY-MD11 (Reply 22):
hmm... How did they know that it drop at 4000 meters?
Quoting flyingalex (Reply 23): Since they found the missing part, it's fairly easy to estimate the altitude from the location of the village in which the door landed. When passing X, the plane should be at Y feet.
There are some reports saying the loss of the door resulted in a hydraulic problem which was shown to the pilots in the cockpit.
25 katanapilot: what airline is flying JFK-CPH in a 757??? i know of 757's doing trans-atlantic, but i didn't know they penetrated that far into europe.
26 AirNZ: Why? it's a door so what difference does it make what door....other than a feelgood factor on a.net? Well, someone's wrong somewhere. It's 20Kgs in t
27 Aesma: When I was talking about skydiving, it's because I'm practicing it. We jump at 4000m and terminal velocity in a "banana" position is around 200Km/h. I
28 AirPacific747: This is apparently approximately where the door fell off: (from bt.dk) Seems like the door hasn't been found yet.
30 comorin: Even if it were perfectly flat, a falling door is not in stable equilibrium - i.e. a small displacement leads to a bigger displacement. As a curved d
32 OYJFC: Only DL from JFK, but CO is flying to CPH from EWR.
33 soon7x7: Yeh...as a matter of fact...relatively speaking, tumble exactly like a leaf...since the panel only weighs in in at a fairly light number and its camb
34 Antoniemey: It said "Not more than 20Kgs" meaning that was the heaviest any door likely to fall off the plane would be. And "5-10" and "10" are not so much separ
35 Grid: Perhaps it fell on an unpopular, solitary person.
36 OYJFC: Since the incident happened, it has been snowing in Denmark (30-50 cm). If the piece has landed on a field far away from a road I think it'll not be f
37 EI747SYDNEY: Has anyone got any pics they want to share????
38 HAWK21M: Looks like the Hyd Service bay door....Odd how that broke free.Was the latches not installed?.
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- There is a so-called inspection door that sits outside of the fuselage behind the left wing, said Lars Christoffersen, accident inspector from AIB to Nordvestnyt.dk
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I wouldn´t like to be the one that owns the car, door, house, cow or body when that thing reaches the ground.
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