King Air B200 Cabin Door Fatality

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AskBob
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King Air B200 Cabin Door Fatality

This afternoon I received my latest copy of AIN.  I always pay particular attention to accident and safety reports; and one stood out among others.  The article told of a mechanic who was fatally injured after opening the door of a King Air B200 main door.  I would encourage everyone to check out the article at: http://www.ainonline.com/news/single-news-page/article/final-report-cabin-pressure-mishap-proved-fatal/ or the NTSB report at: http://www.ntsb.gov/ntsb/brief2.asp?ev_id=20080414X00469&ntsbno=DFW08LA097&akey=1.

 

As this incident occurred more than a year ago, I apologize if this is old news to others or has already been discussed.  I wasn’t sure if this was an appropriate place to send such a message, but I felt compelled to share the info with others; and encourage those of you who manage or supervise others to share with them.  Safety is the most important thing whether you work on a piston single, twin turbo-prop (in this case), or a multi-engine jet.  Please be careful out there.

Jeff Atkinson
Chief of Aviation Maintenance
Moncrief Oil International, Inc.
Fort Worth / Meacham (KFTW)

Originaly posted on NBAA Maintenance Air Mail. Permission to crosspost by Author.

 

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AskBob
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Just finished reading this story of a mechanic killed by opening the cabin door on a King Air. It is a tragic reminder of why we have safety procedures and why we can not ever let our guard down. I think besides recurrent training we need recurrent reminders on the importance of following safety procedures. It may take a second longer, be uncomfortable or make the job a little harder but the alternative can be much worse.

ventura
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Hi, in addition to the failed outflow valve I'm wondering if there was a second failure point that contributed to this. I use to maintain an F90 which used a pressure operated (via a diaphragm) door handle disconnect mechanism which would not allow the door to be unlocked until the cabin was depressurized, the handle would just rotate freely.
I don't have access to the 200 MM to see if it too had this safety feature but I would be surprised if it didn't.

Another thought, shouldn't the door handle have been difficult to operate due to the stress loads on the latches? If so that could be a tell tale for future warning that something is amiss.

That said any mechanism can fail so prudence should rule the day. I will always stand to the side when opening the door. Perhaps the manufacturer could amend the checklist to include opening a cockpit window to ensure the cabin is zero.

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