banner
banner

29 Mar 2024, 09:32 [ UTC - 5; DST ]


Concorde Battery (banner)



Reply to topic  [ 7 posts ] 
Username Protected Message
 Post subject: Cessna 441 in Flight Depressurisation due to Emergency Exit
PostPosted: 06 Aug 2020, 08:38 
Offline


User avatar
 Profile




Joined: 06/19/08
Posts: 725
Post Likes: +611
Location: Australia
Heads up on the Cessna 441. Check your emergency exit doors for debonding and blowing out.

Cessna 441 in Flight Depressurisation due to Emergency Exit door bonded skin
failure

An Airworthiness Bulletin is an advisory document but are not
mandatory.

1. Effectivity
All Textron/Cessna 441 aircraft

2. Purpose
This AWB is raised following a report to CASA of an inflight depressurisation
caused by the failure of the bonded skin panel on the R/H emergency exit door.

3. Background
The subject aircraft has CASA STC SVA 528 applied. This STC extended the life
of the airframe from 22,500 hours, to 40,000 hours.
This failure has occurred at 27,116HR / 23,484CY, which is 4616 hours into the
life extension period per STC SVA 528.
Initial investigations suggest that the bond degradation may be independent of
the hours/cycles accumulated and that the primary driver may be ageing and
degradation of the bond adhesive. Once degradation of the bond occurs,
hours/cycles likely play a higher order role in disbond progression to failure.

Full details.
https://www.casa.gov.au/file/216043/download?token=j2mPR9-o


Please login or Register for a free account via the link in the red bar above to download files.

_________________
I like to answer rhetorical questions because who’s to say what’s right or wrong?


Top

 Post subject: Re: Cessna 441 in Flight Depressurisation due to Emergency E
PostPosted: 08 Aug 2020, 01:32 
Offline


 Profile




Joined: 06/17/14
Posts: 4894
Post Likes: +1862
Location: KJYO
Aircraft: C-182, GA-7
Maybe the engineers knew what they were doing when they set these limits...


Top

 Post subject: Re: Cessna 441 in Flight Depressurisation due to Emergency E
PostPosted: 08 Aug 2020, 17:45 
Offline


User avatar
 WWW  Profile




Joined: 11/30/12
Posts: 4006
Post Likes: +4410
Location: Santa Fe, NM (KSAF)
Aircraft: B200, 500B
Username Protected wrote:
Initial investigations suggest that the bond degradation may be independent of
the hours

The bulletin itself says there's no probable link between flight hours and failure. I'd guess it's more likely linked to calendar years and mean temperature of the bond over those years.

_________________
Be Nice


Top

 Post subject: Re: Cessna 441 in Flight Depressurisation due to Emergency E
PostPosted: 08 Aug 2020, 22:46 
Offline


 Profile




Joined: 06/17/14
Posts: 4894
Post Likes: +1862
Location: KJYO
Aircraft: C-182, GA-7
Thanks Jim!


Top

 Post subject: Re: Cessna 441 in Flight Depressurisation due to Emergency E
PostPosted: 09 Aug 2020, 01:30 
Offline


User avatar
 Profile




Joined: 06/02/10
Posts: 7236
Post Likes: +4511
Company: Inscrutable Fasteners, LLC
Location: West Palm Beach - F45
Aircraft: Planeless
Anyone starting to wonder why all the freaky stuff that happens to airplanes seems to happen in Australia?


Top

 Post subject: Re: Cessna 441 in Flight Depressurisation due to Emergency E
PostPosted: 09 Aug 2020, 08:34 
Offline


 Profile




Joined: 01/02/12
Posts: 333
Post Likes: +100
Username Protected wrote:
Anyone starting to wonder why all the freaky stuff that happens to airplanes seems to happen in Australia?


High time aircraft flown at low levels with rough air and operating conditions in a corrosive environment. Look at the aircraft that are usually responsible for the start of spar and wing ADs.


Top

 Post subject: Re: Cessna 441 in Flight Depressurisation due to Emergency E
PostPosted: 14 Aug 2020, 08:45 
Offline


User avatar
 Profile




Joined: 06/19/08
Posts: 725
Post Likes: +611
Location: Australia
Username Protected wrote:
Anyone starting to wonder why all the freaky stuff that happens to airplanes seems to happen in Australia?


:ohno:
It's supposed to be our harsh sun that makes us look like we age faster. But nope, it's these AD's!

_________________
I like to answer rhetorical questions because who’s to say what’s right or wrong?


Top

Display posts from previous:  Sort by  
Reply to topic  [ 7 posts ] 




You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

Terms of Service | Forum FAQ | Contact Us

BeechTalk, LLC is the quintessential Beechcraft Owners & Pilots Group providing a forum for the discussion of technical, practical, and entertaining issues relating to all Beech aircraft. These include the Bonanza (both V-tail and straight-tail models), Baron, Debonair, Duke, Twin Bonanza, King Air, Sierra, Skipper, Sport, Sundowner, Musketeer, Travel Air, Starship, Queen Air, BeechJet, and Premier lines of airplanes, turboprops, and turbojets.

BeechTalk, LLC is not affiliated or endorsed by the Beechcraft Corporation, its subsidiaries, or affiliates. Beechcraft™, King Air™, and Travel Air™ are the registered trademarks of the Beechcraft Corporation.

Copyright© BeechTalk, LLC 2007-2024

.boomerang-85x50-2023-12-17.png.
.kingairnation-85x50.png.
.tempest.jpg.
.blackhawk-85x100-2019-09-25.jpg.
.Genesys_85x50.jpg.
.shortnnumbers-85x100.png.
.Rocky-Mountain-Turbine-85x100.jpg.
.daytona.jpg.
.traceaviation-85x150.png.
.cav-85x50.jpg.
.Marsh.jpg.
.Wentworth_85x100.JPG.
.saint-85x50.jpg.
.bullardaviation-85x50-2.jpg.
.ei-85x150.jpg.
.jandsaviation-85x50.jpg.
.midwest2.jpg.
.SCA.jpg.
.CiESVer2.jpg.
.avfab-85x50-2018-12-04.png.
.ABS-85x100.jpg.
.wilco-85x100.png.
.headsetsetc_Small_85x50.jpg.
.MountainAirframe.jpg.
.stanmusikame-85x50.jpg.
.concorde.jpg.
.kadex-85x50.jpg.
.aeroled-85x50-2022-12-06.jpg.
.aviationdesigndouble.jpg.
.geebee-85x50.jpg.
.sierratrax-85x50.png.
.pdi-85x50.jpg.
.AAI.jpg.
.Foreflight_85x50_color.png.
.planelogix-85x100-2015-04-15.jpg.
.camguard.jpg.
.kingairacademy-85x100.png.
.wat-85x50.jpg.
.gallagher_85x50.jpg.
.chairmanaviation-85x50.jpg.
.one-mile-up-85x100.png.
.dbm.jpg.
.tat-85x100.png.
.centex-85x50.jpg.
.temple-85x100-2015-02-23.jpg.
.lucysaviation-85x50.png.
.ssv-85x50-2023-12-17.jpg.
.aircraftferry-85x50.jpg.
.pure-medical-85x150.png.
.bpt-85x50-2019-07-27.jpg.
.avionwealth-85x50.png.
.airmart-85x150.png.
.Wingman 85x50.png.
.aircraftassociates-85x50.png.
.blackwell-85x50.png.
.Latitude.jpg.
.jetacq-85x50.jpg.