flyboy80
Posts: 1857
Joined: Fri Jul 13, 2001 8:10 am

Airbus 320 Cargo Doors Come Flying Out!

Wed Oct 22, 2003 1:50 pm

Hi, I've noticed on a few occasions that when the main cargo doors are opened on airbus 320 series aircraft, that the door budges out immediately! Why does this occur? Isn't it kind of a safety hazard, I wouldn't want to be standing in the way when it happened. When airlines train ground personal for this aircraft, do they warn them about this??? Also, I've never noticed it on any other aircraft such as the 757, but maybe it occurs on other aircraft as well? Thanks for any information on this subject!!
 
Guest

RE: Airbus 320 Cargo Doors Come Flying Out!

Wed Oct 22, 2003 4:55 pm

Its caused from residual airpressure and I am sure all airlines warn the ramp people about it. At HP they sure do and when you open it you want to stand to the side.
 
FDXmech
Posts: 3219
Joined: Sun Mar 19, 2000 9:48 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Wed Oct 22, 2003 10:25 pm

Cargo doors on Airbus's are opened hydraulically versus electically on Boeing or MDD aircraft. The exception being the main deck cargo doors on freighters which open hydraulically.

With a door connected to an electrical actuation system it usually doesn't move much when it is unlocked.

With a door connected to a hydraulic actuator with the pressure bled down, the door quickly creeps down when it is unlocked. Yes, you most certainly should be aware of this.

If the aircraft has residual air pressure onboard, the door will violently swing open. Fedex has warning devices on each door to warn of this condition while Dc10hound advised AA has deactivated thiers.
You're only as good as your last departure.
 
flyboy80
Posts: 1857
Joined: Fri Jul 13, 2001 8:10 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Thu Oct 23, 2003 1:23 am

So this is like air escaping rapidly pushes the door out?
 
FDXmech
Posts: 3219
Joined: Sun Mar 19, 2000 9:48 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Thu Oct 23, 2003 1:35 am

>>>So this is like air escaping rapidly pushes the door out?<<<

No, this is the door quickly drooping under its own weight due to the hydraulic actuator being depressurized therefore unable to keep the door closed.




You're only as good as your last departure.
 
MD11Engineer
Posts: 13916
Joined: Sun Oct 26, 2003 5:25 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Tue Oct 28, 2003 1:34 am

Having changed and ajusted plenty of A320 family cargo doors I have to confirm that they are hydraulicaly operated. Due to their center of gravity they hang a little bit to the outboard when the actuators are not pressurized (about 12 inches). They are closed during hose last 12 inches by hydraulic pressure and then kept in position by hooks which capture big bolts at the door sill, as well as two side lock bolts, which extend into holes in the door frame. Once you release the close/open valve handle there is no pressure supply to the actuator anymore and residual pressure bleeds off to the yellow reservoir. So if you unlatch the door after a certain time it will swing ut a bit under its own weight. The latching and unlatching is being done by rotating the door lever. When you push the lever in, you´ll lock the latches so that they are positively unable to unlatch, and at the same time close a small pressure relief door in the cargo door. When you pull out the handle the relief door opens and bleeds of residual air pressure in the cargo hold, so that the the cargo door will not come out by force. BTW, after installation of a cargodoor you will have to check that there is no closing pressure on the door actuators after 5 minutes, simply by unltching the door an seing it drop.

Rgds,

Jan
Je Suis Charlie et je suis Ahmet aussi
 
felinemech
Posts: 1
Joined: Fri Sep 11, 2009 6:01 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Fri Sep 11, 2009 7:16 am

Can you guys answer this question....are the 320's cargo floor boards made out of composite material? If so, what type? Are they frequently damaged? Is there some type of scheduled inspection to comply with specifically for the cargo floor boards?
 
MD11Engineer
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Joined: Sun Oct 26, 2003 5:25 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Fri Sep 11, 2009 9:19 am



Quoting Felinemech (Reply 6):
Can you guys answer this question....are the 320's cargo floor boards made out of composite material? If so, what type?

Yes. Fiber glass honeycomb composite.

Quoting Felinemech (Reply 6):
Are they frequently damaged?

Not too often (at least on aircraft with container loading system, I don´t know about those for loose cargo.

Quoting Felinemech (Reply 6):
Is there some type of scheduled inspection to comply with specifically for the cargo floor boards?

Not that I know of, we checked them during C- and D-checks for condition and repaired them accordingly. I assume that at least the weekly checks contain a visual inspection of the cargo holds,

Jan
Je Suis Charlie et je suis Ahmet aussi
 
Brandi747
Posts: 4
Joined: Mon Aug 24, 2009 7:26 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Fri Sep 11, 2009 2:56 pm

As a ramper this does come as a suprise the first couple of times but then you get used to dodging.... Smile
Come fly with me.
 
wn676
Posts: 1201
Joined: Mon Jun 20, 2005 5:33 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Sat Sep 12, 2009 1:07 am

There's an A321 recently delivered to us that has become a bit famous for the way the cargo doors open, apparently knocking a few to their feet. It seems they open a bit more violently than the rest for some reason.
Tiny, unreadable text leaves ample room for interpretation.
 
wirelock
Posts: 98
Joined: Fri Sep 14, 2007 12:55 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Tue Sep 15, 2009 11:53 am



Quoting Felinemech (Reply 6):



Quoting Felinemech (Reply 6):
Can you guys answer this question....are the 320's cargo floor boards made out of composite material? If so, what type? Are they frequently damaged? Is there some type of scheduled inspection to comply with specifically for the cargo floor boards?

yes the floor boards are composite.
sometimes they come with a layer of aluminum on top to protect against damage.
aircraft with CLS are less prone to damage floors in the cargo. cargos with manual loading get regular damage to floor boards.
slopes and floor boards are considered aircraft structure and the damage limits and repair can be found in the SRM.
the sidewalls and ceilings can be found in ATA 25
 
Maverick623
Posts: 4650
Joined: Thu Nov 30, 2006 9:13 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Thu Sep 17, 2009 6:48 am



Quoting Wn676 (Reply 9):
apparently knocking a few to their feet.

That thing almost knocked me out cold... less than an inch from hitting my head. As it is I leaned back so much I tweaked my back. Scared the bejeezus out of the guy pulling up the belt loader.

That one is because for some reason the doors loose all their hydraulic pressure.
"PHX is Phoenix, PDX is the other city" -777Way
 
twal1011727
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Joined: Thu Mar 23, 2006 5:36 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Thu Sep 17, 2009 11:13 pm



Quoting Flyboy80 (Thread starter):
the main cargo doors are opened on airbus 320 series aircraft,

I'd much rather deal with the A320 doors than the B727-200 cargo doors.
They were such a pain in the ass.
Same droop...but you would have to extend the hold open rod till it
clicked extended then use brute force to open the door and lock the rod in its holder.
After a while it was pretty easy except when the spring assist didn't work.

It was fun to see newbys try to open them...

KD
 
Sancho99504
Posts: 274
Joined: Sun Dec 11, 2005 2:44 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Sat Sep 19, 2009 9:46 pm



Quoting Maverick623 (Reply 11):

Was training a guy in SEA on a CI A340 and told him stand to the side when you pull the handle. Needless to say he didn't listen and had to get 14 stitches.

Quoting Wn676 (Reply 9):

Doors on the A330 and A340 seem to drop harder than on the A320 and A300......and Is the door weight on the A321 heavier than the smaller busses?
kill 'em all and let God sort 'em out-USMC
 
EMBQA
Posts: 7798
Joined: Sat Oct 25, 2003 3:52 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Sat Sep 19, 2009 9:58 pm



Quoting AWA22 (Reply 1):
Its caused from residual air pressure

AAah No... By the time the plane pulls up to the gate cabin pressure is the same as the field. Also, when you push open the vent flap the cargo air is directly open to the outside air.
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
stratosphere
Posts: 1087
Joined: Sat Sep 22, 2007 12:45 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Sun Sep 20, 2009 2:36 am



Quoting TWAL1011727 (Reply 12):
I'd much rather deal with the A320 doors than the B727-200 cargo doors.
They were such a pain in the ass.
Same droop...but you would have to extend the hold open rod till it
clicked extended then use brute force to open the door and lock the rod in its holder.
After a while it was pretty easy except when the spring assist didn't work.

It was fun to see newbys try to open them...

You got that right..When the wind was blowing it was even worse..I seen many a ramper hurt on the 727 doors.
 
Sancho99504
Posts: 274
Joined: Sun Dec 11, 2005 2:44 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Sun Sep 20, 2009 5:38 pm



Quoting FDXmech (Reply 2):
The exception being the main deck cargo doors on freighters which open hydraulically.

Aren't the main deck doors on the 747F and DC10/MD11 electric? I know for a fact that both the nose door and side door on the 747f have a limits on operation such as in wind above 35 knots for nose door and 45 knots for side door, door operation is prohibited, atleast on CV and PO due to the possibility of burning out the electric motor.
kill 'em all and let God sort 'em out-USMC
 
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CCA
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Joined: Wed Oct 02, 2002 7:29 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Tue Sep 22, 2009 1:52 am



Quoting Sancho99504 (Reply 16):
Aren't the main deck doors on the 747F and DC10/MD11 electric? I know for a fact that both the nose door and side door on the 747f have a limits on operation such as in wind above 35 knots for nose door and 45 knots for side door, door operation is prohibited, atleast on CV and PO due to the possibility of burning out the electric motor.

Yes as you say 747 main deck cargo door are electric, same as the lower ones (ex the bulk door).

I don't know about the MD11/DC10.
P1 in A330, A340, A346, B742, B744, B748.
 
wn676
Posts: 1201
Joined: Mon Jun 20, 2005 5:33 am

RE: Airbus 320 Cargo Doors Come Flying Out!

Tue Sep 22, 2009 6:22 am



Quoting Sancho99504 (Reply 13):
Doors on the A330 and A340 seem to drop harder than on the A320 and A300......and Is the door weight on the A321 heavier than the smaller busses?


Not at all, they all share the same size door as far as I know.

If there's one thing I like about our ex-Braniff A320s, it's the older style door handles. It makes it much easier to stand to the side and turn the handle towards you instead of having to stand directly in front of the door to push the handle up.
Tiny, unreadable text leaves ample room for interpretation.
 
Sancho99504
Posts: 274
Joined: Sun Dec 11, 2005 2:44 pm

RE: Airbus 320 Cargo Doors Come Flying Out!

Tue Sep 22, 2009 2:46 pm



Quoting Wn676 (Reply 18):
If there's one thing I like about our ex-Braniff A320s

I take it you work for HP?
I personally like the new style handle as it seems the locks hold longer on those doors than the older ones so you don't have to run to the door the get the handle locked.
kill 'em all and let God sort 'em out-USMC

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