Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

Whats CONTAINED FAILURE ?

Wikiposts
Search

Notices
Tech Log The very best in practical technical discussion on the web

Whats CONTAINED FAILURE ?

Thread Tools
 
Search this Thread
 
Old 25th March 2007 | 14:05
  #1 (permalink)  
Thread Starter
 
Joined: Feb 2005
Posts: 163
Likes: 0
From: TANZANIA
Whats CONTAINED FAILURE ?

Reading below article came across terminologies

CONTAINED and UNCONTAINED FAILURE !

What do they mean ?

US FAA investigates Continental 777 engine failure at Newark
Zenj is offline  
Reply
Old 25th March 2007 | 14:36
  #2 (permalink)  

Dog Tired
 
Joined: Oct 2001
Posts: 1,686
Likes: 2
From: uk
If bits come off and clump you in the head, it's uncontained. If the bits stay inside, it's contained.
fantom is offline  
Reply
Old 25th March 2007 | 15:01
  #3 (permalink)  
 
Joined: Jan 2007
Posts: 44
Likes: 0
From: In front of the computer
When referring to engine failures it means the rotating parts such as turbine blades/discs have or have not been spat out by the engine in question. I remember a thread on here not so long ago with pictures of an uncontained failure. Try searching engine failures..........

Uncontained;



Ric

Last edited by Riccardo; 25th March 2007 at 15:14. Reason: Picture insert (I hope!)
Riccardo is offline  
Reply
Old 25th March 2007 | 15:30
  #4 (permalink)  
The Cooler King
20 Anniversary
 
Joined: Feb 2004
Posts: 1,717
Likes: 30
From: Europe
Did it really come in BIG CAPITAL LETTERS and an exclamation mark?
Farrell is online now  
Reply
Old 25th March 2007 | 16:00
  #5 (permalink)  
Thread Starter
 
Joined: Feb 2005
Posts: 163
Likes: 0
From: TANZANIA
Thanks for your replies
Zenj is offline  
Reply
Old 25th March 2007 | 16:42
  #6 (permalink)  
25 Anniversary
 
Joined: Aug 2000
Aviation Qualifications: Spotter
Posts: 2,143
Likes: 4
From: EGGW
Zenj.
Have a look at the Co B777 thread on Rumours and News, far better explanation on that thread.
Mr @ Spotty M is offline  
Reply
Old 25th March 2007 | 17:14
  #7 (permalink)  
Below the Glidepath - not correcting
40 Countries Visited
20 Anniversary
 
Joined: Jun 2005
Posts: 1,886
Likes: 97
From: U.S.A.
Uncontained Failure

Look up Delta Airlines MD-80 at Pensacola, Florida Sunday July 6, 1996. They had an uncontained engine failure on takeoff and debris entered the rear cabin killing a mother and her daughter and injuring several other pax. NTSB Report here;

http://www.ntsb.gov/ntsb/GenPDF.asp?...96MA068&rpt=fa
Two's in is offline  
Reply
Old 25th March 2007 | 20:40
  #8 (permalink)  
 
Joined: Mar 2002
Posts: 4,569
Likes: 1
From: Florida
"contained" failures in the FAR/JAR part 33 refer to engine casings integrity.

Uncontained failures FAR/JAR part 25 refer to any source of engine debris that might disable the aircraft. This does include the liberation of debris out of the front and back of the engine.

The sublety is in which regulation applies and to what manufacturers' design.

When it comes to serious aircraft damage there is no sublety and who cares who is at fault, just fix it.

The news media never sees these shades of grey and react just to broken bits alone, thus the so called on-off light switch approach to headlines.
lomapaseo is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.