United B777-200 uncontained engine failure? over Denver

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Gabriel
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Re: United B777-200 uncontained engine failure? over Denver

Postby Gabriel » Wed Feb 24, 2021 4:49 pm

Ah, thanks J - hadn't read that. So this was indeed a contained failure.
I do wonder however if there are instances of a piece of cowling hitting at just the right angle or fast enough to cause material damage to a wing (?)
I don't remember such an occurrence, but we had the Southwest case where a piece of cowling hit a window (or nearby) causing such window to depart the plane causing a sudden decompression that partially sucked out a passenger that sustained fatal injuries.

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Gabriel
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Re: United B777-200 uncontained engine failure? over Denver

Postby Gabriel » Wed Feb 24, 2021 4:52 pm

My understanding is the damaged piece in the photograph is a fiberglass fairing and that it exhibits smears that are the same color as the inside of the engine narcelle. Supposedly the underlying wing root had a mark on it but was not damaged.
Exactly. Here is a better picture. There are several reasons why this doesn't look at all like an high energy shrapnel impact (from a blade being shot out) but rather a blunt-force impact (from a piece of cowling flying).
United 777.JPG
United 777.JPG (180.48 KiB) Viewed 580 times

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3WE
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Re: United B777-200 uncontained engine failure? over Denver

Postby 3WE » Sat Feb 27, 2021 4:56 pm

So, Evanie has proclaimed that we have again not learned our lesson and repeated an easily-preventable near total air disaster!!!!!

Another failure in regulation, training and oversight, that calls for firings and public physical punishment.

What do we (and we) think?

Ass-hat, outsider, 3BS parlour talk: Indeed this has happened twice, and I would ask if these huge ass turbines aren’t over-stressing themselves more than the little turbines of the 1960s?
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Gabriel
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Re: United B777-200 uncontained engine failure? over Denver

Postby Gabriel » Sat Feb 27, 2021 6:27 pm

Ass-hat, outsider, 3BS parlour talk: Indeed this has happened twice, and I would ask if these huge ass turbines aren’t over-stressing themselves more than the little turbines of the 1960s?
I don't think that it is a problem of "these huge ass turbines" compared with the "little turbines of the 60's"
In fact, I don't have the statistics but I am sure that today's turbofans are much more reliable than the early turbojets.

These seem to be rather a problem with this particular model of big-ass turbine. It had 3 failures of fan blades combined with cowling flown away in the last 2 years on a fleet of a little over 100 airplanes. That records seems totally unmatched by other big-ass turbines.

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Not_Karl
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Re: United B777-200 uncontained engine failure? over Denver

Postby Not_Karl » Thu Mar 04, 2021 2:54 am

The cowling is actually considered part of the airplane (not part of the engine)(...)
I look forward to watching Verbie's and PPie's public punishments on TV.
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Re: United B777-200 uncontained engine failure? over Denver

Postby elaw » Thu Mar 04, 2021 12:22 pm

Ass-hat, outsider, 3BS parlour talk: Indeed this has happened twice, and I would ask if these huge ass turbines aren’t over-stressing themselves more than the little turbines of the 1960s?
I don't think that it is a problem of "these huge ass turbines" compared with the "little turbines of the 60's"
In fact, I don't have the statistics but I am sure that today's turbofans are much more reliable than the early turbojets.

These seem to be rather a problem with this particular model of big-ass turbine. It had 3 failures of fan blades combined with cowling flown away in the last 2 years on a fleet of a little over 100 airplanes. That records seems totally unmatched by other big-ass turbines.
Yeah... back in the day, you could get on an airplane with JT8Ds and be almost guaranteed that some part of an engine at some point would decide to head toward a destination roughly perpendicular to the plane's flight path. Nowadays, not so much. :lol:
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Verbal
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Re: United B777-200 uncontained engine failure? over Denver

Postby Verbal » Thu Mar 04, 2021 6:51 pm

I look forward to watching Verbie's and PPie's public punishments on TV.
No.
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