Go Back  PPRuNe Forums > Flight Deck Forums > Rumours & News
Reload this Page >

Quite an uncontained engine failure

Rumours & News Reporting Points that may affect our jobs or lives as professional pilots. Also, items that may be of interest to professional pilots.

Quite an uncontained engine failure

Old 27th Aug 2016, 19:34
  #1 (permalink)  
Thread Starter
 
Join Date: Jan 2008
Location: Bracknell, Berks, UK
Age: 49
Posts: 1,132
Quite an uncontained engine failure

https://twitter.com/raulcanelos/stat...68674420297728

Kudos to the crew for bringing it down safely.
Mike-Bracknell is offline  
Old 27th Aug 2016, 19:49
  #2 (permalink)  
 
Join Date: Mar 2015
Location: Harwich UK
Age: 62
Posts: 30
Is it just me, or does it look as though all the actual engine-y parts are still intact? Like the fan and everything behind it?
Luther Sebastian is offline  
Old 27th Aug 2016, 20:01
  #3 (permalink)  
 
Join Date: Sep 2007
Location: europe
Posts: 112
Certainly looks like the N1 is intact, how'd they do it ? It's normally the back end that let's go not the front.
Enos is offline  
Old 27th Aug 2016, 20:08
  #4 (permalink)  
 
Join Date: Feb 2005
Location: flyover country USA
Age: 78
Posts: 4,579
Quite an uncontained engine failure
The failure for all appearances is the inlet duct, not the engine proper. The engine might have continued running albeit at lower thrust. Boeing will truck in a new inlet, the engine will be changed for an overall performance check, and someone in a farm field will collect some scrap aluminum for recycling.

That's why there's another donk on the other wing.

BTW, the absurd dialogue in that link is the reason I never signed up for Twitter.
barit1 is offline  
Old 27th Aug 2016, 20:14
  #5 (permalink)  
 
Join Date: Mar 2014
Location: UK
Posts: 32
https://pbs.twimg.com/media/Cq40IDpUAAAcrqn.jpg:orig

Hi-res pic of damage to wing root and more scarily just below the windows.

Source: https://twitter.com/jonostrower/stat...074496/photo/1

Last edited by flt001; 27th Aug 2016 at 20:43. Reason: Missing source
flt001 is offline  
Old 27th Aug 2016, 20:30
  #6 (permalink)  
 
Join Date: Jan 2000
Location: FL410
Posts: 856
Cowling separated...?
Interesting to find out how...
Skyjob is offline  
Old 27th Aug 2016, 20:30
  #7 (permalink)  
 
Join Date: Oct 2001
Location: East Sussex
Age: 64
Posts: 389
It appears that The Inlet Cowl has failed structurally as the remaining part of the assembly is still attached to the Engine Fan Case. The failure appears to have gone into the Wing Leading Edge and Fuselage then left an Oval shaped impact on the Stabilizer Leading Edge.
Tempsford is online now  
Old 27th Aug 2016, 20:47
  #8 (permalink)  
 
Join Date: Jun 2005
Location: near EHWO
Posts: 52
And possible loss of cabin pressure too as pax & crew were on oxygen: https://aviation-safety.net/database...?id=20160827-0
Safe-T is offline  
Old 27th Aug 2016, 20:51
  #9 (permalink)  
 
Join Date: Jul 2005
Location: position data invalid
Posts: 50
taxi in ...

Safely parked at the stand too .
cod liver oil is offline  
Old 27th Aug 2016, 21:39
  #10 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 5,388
It seem that we're missing the critical evidence in the cropped pic of the fan.

Most likely the engine was involved and contained, but the bits spitting forward did the damage.


Let's see what other pics turn up
lomapaseo is offline  
Old 27th Aug 2016, 23:07
  #11 (permalink)  
 
Join Date: Aug 2006
Location: New England
Age: 80
Posts: 22
red protrusions at top of nacelle

What are those two red levers? just to the left and right of top center of the nacelle and just forward of the pylon? They look like they ought to be pushed down into their slots.
Kubarque is offline  
Old 27th Aug 2016, 23:14
  #12 (permalink)  
 
Join Date: May 2003
Location: USA
Posts: 69
Jon Ostrower of Wall Street Journal is doing some fine reporting on this right now..
https://twitter.com/jonostrower/stat...35472205242368
averow is offline  
Old 27th Aug 2016, 23:27
  #13 (permalink)  
 
Join Date: Jul 2013
Location: Everett, WA
Age: 65
Posts: 2,996
Some of the links in this thread don't work (at least not for me), but it appears all the fan blades are still there. About the only thing that could go wrong with the engine itself that could cause the inlet to separate would be a fan blade release and I don't see any evidence of that.
I'd wonder about a malfunction of the inlet anti-ice
tdracer is offline  
Old 28th Aug 2016, 00:05
  #14 (permalink)  
 
Join Date: Mar 2015
Location: Coastal Georgia
Age: 68
Posts: 40
What are those two red levers? just to the left and right of top center of the nacelle and just forward of the pylon? They look like they ought to be pushed down into their slots.
I believe those just "appear" to be latches and we likely see some stress induced seam separation of the pylon or fan cowl assys. Nose/inlet cowl isn't attached using just quick release latches.
......
number0009 is offline  
Old 28th Aug 2016, 00:12
  #15 (permalink)  
 
Join Date: Jul 2013
Location: Western NY
Age: 78
Posts: 5
Cooked the cowl

Could this be a de ice valve stuck open overheating cowl structure?
johnhb is offline  
Old 28th Aug 2016, 00:15
  #16 (permalink)  
 
Join Date: Nov 1999
Location: Mk. 1 desk at present...
Posts: 363
That's a head scratcher! Never seen one do that before. Maybe took a combination... bleed air duct separation pressurizing inlet cowl and also precipitating especially violent compressor stall?
Ranger One is offline  
Old 28th Aug 2016, 00:50
  #17 (permalink)  
 
Join Date: Mar 2014
Location: WA STATE
Age: 75
Posts: 1
More pics including in flight

from comments in
WSJ

Kathryn's Report: Southwest Airlines, Boeing 737-7H4, N766SW: Incident occurred August 27, 2016 at Pensacola International Airport (KPNS), Escambia County, Florida

careful look at one shows minor damage to winglet !
CONSO is offline  
Old 28th Aug 2016, 01:38
  #18 (permalink)  
 
Join Date: Mar 2002
Location: Florida
Posts: 5,388
How many fan blades should we expect to count ?

Are we missing one complete blade?

Any large holes out of view like the bottom of the nacelle behind the fan?

I sure don't understand the passenger masks deployment if true
lomapaseo is offline  
Old 28th Aug 2016, 01:56
  #19 (permalink)  
 
Join Date: May 2008
Location: United States
Posts: 99
I sure don't understand the passenger masks deployment if true
Have you seen the picture showing damage to the fuselage, a little below and between two cabin windows? Looks as though it may have punctured the pressure vessel. Perhaps that is why masks deployed, and flight crew commenced an immediate descent to FL100.

(Will defer to those more knowledgeable.)
Passenger 389 is offline  
Old 28th Aug 2016, 02:15
  #20 (permalink)  
 
Join Date: Mar 2014
Location: WA STATE
Age: 75
Posts: 1
Originally Posted by Passenger 389 View Post
Have you seen the picture showing damage to the fuselage, a little below and between two cabin windows? Looks as though it may have punctured the pressure vessel. Perhaps that is why masks deployed, and flight crew commenced an immediate descent to FL100.

(Will defer to those more knowledgeable.)
That sized hole/tear would probably be enough to trigger a mask drop- even though one engine would normally be enough to maintain a relatively slow decompression to perhaps 10K feet equivalent altitude. I'm sure the eventual report will be definitive in the actual cabin pressure rate of decompression versus altitude as the plane was descending.

Last edited by CONSO; 28th Aug 2016 at 03:51. Reason: typos and additions
CONSO is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.