Re: Boeing 777 Cabin Door

Date:         30 Mar 98 04:31:24 
From:         faurecm@halcyon.com (C. Marin Faure)
Organization: NorthWest Nexus Inc.
References:   1 2
Followups:    1 2
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In article <airliners.1998.497@ohare.Chicago.COM>,
gfoley@freenet.columbus.oh.us (Gerard Foley) wrote:

> In <airliners.1998.429@ohare.chicago.com>, faurecm@halcyon.com (C. Marin
Faure) writes:
> > An interesting sidebar to the 777 door. It seems that failing hydraulics
> > in jetways is not that uncommon of an occurance.  When it happens, the
> > jetway sags down to the ground, and it can peel the door right off an
> > airplane in the process.
>
> Shouldn't the jetway bellows be made weak enough to tear away without serious
> damage to the airplane?

You'd think so, but apparently the strength of the fabric and frames are
sufficient to cause a lot of damage when the jetway sinks down onto the
door.  The airlines apparently have had enough problems with this over the
years to warrant requesting the design of the 777 door be such that it
will break away without damaging the door frame and surrounding airframe
structure which can be very expensive and time-consuming to repair.

C. Marin Faure
  author, Flying A Floatplane