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re: Passenger on an American Airlines flight recorded when a bird struck an engine last night

Posted on 12/13/24 at 11:52 am to
Posted by 777Tiger
Member since Mar 2011
82735 posts
Posted on 12/13/24 at 11:52 am to
quote:

I'm surprised this doesn't happen more often.


happens all the time
Posted by White Bear
Yonnygo
Member since Jul 2014
16295 posts
Posted on 12/13/24 at 11:58 am to
Need to mount a Ranch Hand on front of the engine cowling.
Posted by The Third Leg
Idiot Out Wandering Around
Member since May 2014
10664 posts
Posted on 12/13/24 at 12:01 pm to
Boeing releases giant sign of relief that it was an Airbus. No more news is good news.
This post was edited on 12/13/24 at 12:02 pm
Posted by blueridgeTiger
Granbury, TX
Member since Jun 2004
21699 posts
Posted on 12/13/24 at 12:01 pm to
Many years ago, I was on a TI flight between Lafayette and Houston when the plane's wing struck a goose. We made an emergency landing in Lake Charles, and I got to take a look at the damage. It hit about six feet from the end of the wing and put a large hole in the leading edge.
Posted by Traveler
I'm not late-I'm early for tomorrow
Member since Sep 2003
25576 posts
Posted on 12/13/24 at 12:01 pm to
A bird ingested in an engine is better than a bird smacked in the face.
[/img]
Posted by 777Tiger
Member since Mar 2011
82735 posts
Posted on 12/13/24 at 12:02 pm to
quote:

Boeing releases giant sign of relief that it was an Airbus.


Boeing doesn't make the engines, baw
Posted by StanSmith
Member since May 2018
1023 posts
Posted on 12/13/24 at 12:09 pm to
Being an aviation enthusiasts, having some knowledge of piston and jet engines, a somewhat frequent flyer and a mechanical engineer I'm pretty sure that I would pick up on the vibration, unusual noises and an engine shutdown. I'm not a nervous flyer and I actually enjoy take offs. I guarantee my ears are going to be focused 100 percent on what follows. Can't do anything about it but once you know something is amiss you can't stop thinking about it.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69057 posts
Posted on 12/13/24 at 12:11 pm to
quote:

make something that protects the engines from birds?


It could be done but at a massive loss of efficiency. Added weight, added cost, added drag...

The short answer is it would cost far too much fuel and it's more economical to just risk the occasional bird strike.
Posted by 777Tiger
Member since Mar 2011
82735 posts
Posted on 12/13/24 at 12:12 pm to
quote:

I'm pretty sure that I would pick up on the vibration,


it really depends on the scenario, I've shut down an engine and had to divert and not a soul outside of the cockpit(on the jet,) was aware that there was any non-normal situation at all
Posted by Hester Carries
Member since Sep 2012
24142 posts
Posted on 12/13/24 at 12:13 pm to
How dumb are birds, yo?
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69057 posts
Posted on 12/13/24 at 12:14 pm to
What happens after an engine is shut down mid flight? Does it free-wheel and still make oil pressure or do they have some kind of shaft lock on them? Already locked up so it doesn't matter?

I was always curious about that.
Posted by CuseTiger
On the road
Member since Jul 2013
8730 posts
Posted on 12/13/24 at 12:15 pm to
Maybe a medium flocking bird? Engines are supposed to be able to handle these situations, sounds like it did exactly as it should and the plane was able to land safely. Now cleaning the interior of the engine after a bird strike... different story
This post was edited on 12/13/24 at 12:18 pm
Posted by ctiger69
Member since May 2005
30858 posts
Posted on 12/13/24 at 12:17 pm to
quote:

Did it live?


I hope so. We don’t deserve birds.
Posted by 777Tiger
Member since Mar 2011
82735 posts
Posted on 12/13/24 at 12:17 pm to
quote:

Does it free-wheel and still make oil pressure or do they have some kind of shaft lock on them?


the high bypass blades will still spin, it depends on why the engine was shut down, if it seized, obviously not, but if it were shut down due to decreasing oil quantity/pressure it will still turn
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69057 posts
Posted on 12/13/24 at 12:25 pm to
Well evidently I don't know enough about how they work. I thought all the blades were on the same shaft.

Do the engines ever stay operable after eating a bird? That's got to mean instant trashed engine, right? I always assumed the bird strike tests on YouTube were to make sure the cowling would contain all the pieces.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69057 posts
Posted on 12/13/24 at 12:26 pm to
quote:

cleaning the interior of the engine after a bird strike... different


Its got to be completely trashed, right? I wouldn't think anything internal would be usable after that.
Posted by ApisMellifera
SWLA
Member since Apr 2023
571 posts
Posted on 12/13/24 at 12:26 pm to
quote:

What the hell is there to investigate?


When I was still in the AF, they would recover what remains are left to ID the type of bird. They would use this and other data from the flight to find flight/migratory patterns and try to work their flight schedules around them to avoid bird strikes.

quote:

Maybe a dumb question but can this sort of thing be preventable or make something that protects the engines from birds?


When I was in tech school at Sheppard AFB, there were guys that rode around on the flightline in a truck with an air cannon on the back. They would find flocks of bird and shoot it, which made a massive boom and would scare the birds off. At the time I remember thinking that I wish I had that job.

quote:

it really depends on the scenario, I've shut down an engine and had to divert and not a soul outside of the cockpit(on the jet,) was aware that there was any non-normal situation at all


This reminds me of a trip I went on to Vegas for Red Flag. We were carrying some random medical staff with us. About halfway there pilot calls us up and we figure out the prop blew a seal. This automatically triggers an "emergency landing". We push ahead a few hours to Vegas and are greeted by the normal emergency vehicles/personnel. Some of the medical girls looks out the window to see all the fire trucks with lights going and air field vehicles. They asked what the hell is going on. We said "We broke a couple hours ago. The pilot said he'd rather be broke in Vegas than Cannon (hell hole)." The look on their faces was priceless.
This post was edited on 12/13/24 at 12:39 pm
Posted by 777Tiger
Member since Mar 2011
82735 posts
Posted on 12/13/24 at 12:27 pm to
quote:

Do the engines ever stay operable after eating a bird?


absolutely

quote:

That's got to mean instant trashed engine, right?


not necessarily, they can take quite a beating
Posted by Indefatigable
Member since Jan 2019
33115 posts
Posted on 12/13/24 at 12:27 pm to
quote:

there's a good chance you wouldn't even know if an engine has been shut down

Even if I'm in the window seat and see it on fire?
Posted by Stevo
Baton Rouge
Member since Sep 2004
12062 posts
Posted on 12/13/24 at 12:27 pm to
quote:

happens all the time


Like you would know. What are you, a pilot?

[sarcasm]
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