dogfighter2111
Posts: 1867
Joined: Tue Nov 09, 2004 3:02 am

Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 3:45 am

Hey,

Just found this:

Read Full Story: http://aviation-safety.net/news/newsitem.php?id=1537

Quote:
After landing a 1.5-meter-long, 20- to 60-centimeter hole was discovered in the engine.

Now, ^ that must be unusual. What could've caused that?

Thanks
Mike
 
cloudyapple
Posts: 1261
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RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 4:02 am

A fan blade coming out at an angle.
A310/A319/20/21/A332/3/A343/6/A388/B732/5/7/8/B742/S/4/B752/B763/B772/3/W/E145/J41/MD11/83/90
 
dogfighter2111
Posts: 1867
Joined: Tue Nov 09, 2004 3:02 am

RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 4:35 am

ahh, ok thanks.

Thanks
Mike
 
ikramerica
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RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 4:53 am

Quoting Dogfighter2111 (Thread starter):
Now, ^ that must be unusual. What could've caused that?

it's why fuselages are reinforced in line with the engines with a missing window, so if a blade flies off uncontained, it hits a strong part of the plane and doesn't fly through a window or something.
Of all the things to worry about... the Wookie has no pants.
 
dogfighter2111
Posts: 1867
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RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 4:58 am

Quoting Ikramerica (Reply 3):

Therefore not causing decompression?

Thanks
Mike
 
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CCA
Posts: 769
Joined: Wed Oct 02, 2002 7:29 pm

RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 6:45 am

P1 in A330, A340, A346, B742, B744, B748.
 
dogfighter2111
Posts: 1867
Joined: Tue Nov 09, 2004 3:02 am

RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 6:54 am

Quoting CCA (Reply 5):

Great, thanks. Isn't that a bit far back for a Fan Blade to cause that damage?

Thanks
Mike
 
DfwRevolution
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RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 7:10 am

Quoting Ikramerica (Reply 3):
it's why fuselages are reinforced in line with the engines with a missing window, so if a blade flies off uncontained, it hits a strong part of the plane and doesn't fly through a window or something.

I believe you are mistaken. Missing windows are usually related to AC ducts, not engine placement. Because aircon packs are usually in the wing root area, the "missing windows" are often close to engine pylons, but not precisely aligned with anything in particular.

It's simply coincidence. If an engine failed, engineers would have no way to know if uncontained debris will strike on window or another:


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Quoting Dogfighter2111 (Reply 4):
Therefore not causing decompression?

If the fuselage is punctured, decompression (to varying degree) will occur. Window reinforcements are designed to keep a local failure from weaking the surrounding structure. A "rip stop" if you will.

The "missing windows" however, are not localized reinforcement to protect from an engine failure.
 
DrDeke
Posts: 805
Joined: Sat Jun 11, 2005 7:13 am

RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 7:14 am

Looks to me like it would have had to have been a turbine blade. Probably the low-pressure turbine judging from that picture.

-DrDeke
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miamiair
Posts: 4249
Joined: Thu Jul 15, 2004 9:42 pm

RE: Skymark B767 Suffers Uncontained Engine Failure

Sun Dec 04, 2005 7:21 am

Quoting DrDeke (Reply 8):
The "missing windows" however, are not localized reinforcement to protect from an engine failure.

You are correct.
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