pilottim747
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Door Comes Off Of A Delta B772 In ATL

Thu Feb 03, 2005 9:48 am

I was just reading the FAA's Preliminary Accident and Incident Data and found a very curious incident described. On January 29th, it says that the L1 door of N650DA came off after the aircraft rolled back from the gate.

"N860DA, DELTA AIRLINES DAL11, A BOEING 777ACFT, WHILE PARKED AT THE GATE, ROLLED BACK FROM THE JETWAY AND THE L1 DOOR CAME OFF, NO INJURIES REPORTED, DAMAGE UNKNOWN, ATLANTA, GA"

Delta Flt. 11 runs LGW-ATL. The incident must've happened just after the aircraft had pulled into the gate. Anyone have any information on this flight or aircraft?


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pilottim747
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CALMSP
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RE: Door Comes Off Of A Delta B772 In ATL

Thu Feb 03, 2005 9:52 am

possibly not chalked correctly.......this can happen very easily if that is the case.....plane rolls back and the door catches the jetway and comes off.....almost ran into that problem when the captain released the brakes on an F9 319 and the plane rolled back and caught the jet-bridge..
 
Boeing Nut
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RE: Door Comes Off Of A Delta B772 In ATL

Thu Feb 03, 2005 10:21 am

One of the great engineering ideas that went into the 777 was to protect the aircrafts integrity when such an incident happens. The hinges on the doors are engineered to be "weak" enough that if there is this type of jetway incident, they will simply shear off without damaging the rest of the aircraft. I'll be this aircraft was fixed in a matter of several hours.
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HAWK21M
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RE: Door Comes Off Of A Delta B772 In ATL

Fri Feb 04, 2005 3:36 pm

Shear Pins/Links doing their job I guess.
regds
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gearup
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 1:46 am

One of the great engineering ideas that went into the 777 was to protect the aircrafts integrity when such an incident happens. The hinges on the doors are engineered to be "weak" enough that if there is this type of jetway incident, they will simply shear off without damaging the rest of the aircraft. I'll be this aircraft was fixed in a matter of several hours.

This is a common feature on many aircraft and is not a 777 innovation.
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av757
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 1:58 am

The first Boeing 777 to have the shear pins on door 1L demonstrate their design capability occurred on the protoype on a demo at BOG, at the AV terminal Puente Aereo when the airplane arrived, the gate was placed in position and with the excess weight of all the people on it who wanted to see the airplane while on exhibit, it collapsed and the airplane had a major delay departing BOG to SCL where it was going to shown in FIDAE aeronautical show until parts arrived for the repair.

AV757
 
AA737-823
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 3:16 am

Well that feature is certainly not present on A320s or DC-9-80s.
Check photos in this database with doors ripped off and much damage done!
 
akjetBlue
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 6:26 am

What ever happened to having the aircraft doors retracting in the celing? Wasn't that a much better idea to totally prevent such an incident? Are any aircraft still made with those types of doors?
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AUAE
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 7:41 am

My only thought on retracting doors is that a blown slide can cause a lot of damage and harm to crew (if it happens when the door is going up, and it is still attached to the door).

Shawn
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qwerty
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 7:42 am

What ever happened to having the aircraft doors retracting in the celing? Wasn't that a much better idea to totally prevent such an incident? Are any aircraft still made with those types of doors?

That design makes emergency egress a problem.
 
FriendlySkies
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 8:00 am

The only aircraft that ever had the interior doors were the DC-10, MD-11, and 767 IIRC (the Caravelle's door slid inside, but didn't go into to ceiling).

I always wondered what the point of this design was, it seems unsafe in an emergency.
 
AA737-823
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 8:01 am

The 767 is!!! 76 doors are powered up into the ceiling, just like the old DC-10s and L-1011s... and MD-11s I guess.
 
777ER
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 8:13 am

Doors that go into the ceiling would be a better option.
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ha763
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 9:23 am

That design makes emergency egress a problem.

It is not a problem for emergency evacs. If it was, there is no way it would have been certified. In fact, I've been to an emergency evac certification. The FAA requires that airlines demonstrate that the slides from 50% of the exits can be inflated within 15 secs from when the emergency lights come on. This is in addition to the manufacturer showing that an emergency evac can be done within 90 sec using half of the exits on the aircraft with the max number of pax on board.

The reason the type of doors found on the DC-10/L-1011/767 are not found on more widebody aircraft is that the doors are heavier than a door that swings out due to counterweights. The counterweights allow the door to open/close a lot easier.
 
qwerty
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 9:35 am

It is not a problem for emergency evacs

We're both right. We just have different opinions.

For me, if my garage is on fire, I'm using the side door, swinging out, not the main door, opening back-and-up inside the house. And that's with no analogous structural house damage that might make main door operation difficult.
 
airgeek12
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 9:52 am

how could this happen if the a/c doors were already locked? *(i think)* oh well.. interesting thing. at least they got it fixed =)
 
gearup
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 10:01 am

I have seen several B737-200 doors, both PAX and catering service doors torn off due to airbridge/catering truck incidents over the years without significant damage to the aircraft (besides failed hinges or scratched paint) and that design is as old as the hills. The 737 door is basically the same as the 727, 707/720 and is obviously still in use today in the 737NG series. I still love that old Boeing plug door, simple mechanism but very effective and reasonably easy to maintain.

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rj777
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 1:55 pm

Any pics of the damage?
 
tu154m
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 2:25 pm

Jan 29th was the day ATL had about 2inches of ice. When the a/c parked at the gate, the wheels were properly chocked. The Capt then released the parking brake after getting the "chocks in" signal from the ground crew, as is normal. Problem is, chocks don't work very well on 2 inches of ice, and the plane....and chocks......slid back. The door caught on the jetway and departed the a/c. Stuff like this isn't really all that uncommon. Planes are always getting banged up when they are at the gate.........very crowded with alot of activity.
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CORULEZ05
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 2:27 pm

"Planes are always getting banged up when they are at the gate"...pretty scary statement if true.......maybe these plane handlers need to be more careful........
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LongbowPilot
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RE: Door Comes Off Of A Delta B772 In ATL

Sat Feb 05, 2005 4:46 pm

Oh hell no!

Excuse me sir, but do you have any idea how many flights a day operate. Ground guys are very safe. We choc the equpiment while they are static (next to plane or parked off the ramp). We are always careful and give a lot of respect to aircraft. It is a demanding job and accidents happen. I bet you sit in a climate controled building and work. If you work outside than you know the demands of the climate on the body. In general if the aircraft is on ICE, you cannot blame anyone buy mother nature. REad the post and don't go throwing blam on the ground guys, they work EXTREMELY hard in any element thrown at them except lightning.