Kill Two Engines With One Bird

[vanNostrum]

[size=11pt][font=Helvetica][b]ncident: Eurowings A319 at Stuttgart on Aug 13th 2017, rejected takeoff due to one bird strike damaging both engines[/b]
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By Simon Hradecky, created Thursday, Aug 17th 2017 10:42Z, last updated Thursday, Aug 17th 2017 10:42Z

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A Eurowings Airbus A319-100, registration D-ABGO performing flight EW-2924 from Stuttgart (Germany) to Antalya (Turkey), was accelerating for takeoff from Stuttgart's runway 07 when the left hand engine ingested a bird and failed, the right hand engine failed almost at the same time. The crew rejected takeoff at high speed, turned off the runway about 1,900 meters/6,230 feet down the runway and stopped clear of the runway.

The Aviation Herald received information stating, that the left hand engine ingested a bird causing severe damage to all fanblades. Fragments of the fan blades accelerated forward impacting the engine inlet as well as the slats/flaps and forward fuselage. Fragments also flew over to the right hand side and were ingested by the right hand engine resulting in fan blade damage of the right hand engine, too. The left engine inlet received several punctures, the fan case, slats/flaps and forward fuselage several dents.

Germany's BFU receiving this description of the occurrence as outlined above reported, they have been informed about this occurrence and are currently collecting further information to determine the classification of the occurrence.

In the following days the aircraft was seen in a maintenance hangar with the left hand engine off the pylon for being replaced and the right hand engine wide open being worked upon

[color=rgb(23, 96, 147)][url=http://avherald.com/h?article=4ad17d93&opt=0]http://avherald.com/h?article=4ad17d93&opt=0[/url][/color]
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[Eric Janson]

That's why I fly 4 engined aircraft!  ;) ;)


It will be interesting to read the full report on this one - normally a bird strike won't result in this kind of damage.

[cgzro]

If thats true we no doubt will see some inlet design changes. Thats a crazy bit of bad luck for a fan blade to fly out, forward, arch over or under the fuse and then get in jested on the other side. Be interesting trying to simulate that bit of physics!

[vanNostrum]

[quote author=cgzro link=topic=6934.msg18765#msg18765 date=1503315091]
If thats true we no doubt will see some inlet design changes. Thats a crazy bit of bad luck for a fan blade to fly out, forward, arch over or under the fuse and then get in jested on the other side. Be interesting trying to simulate that bit of physics!
[/quote]

Some of the debris may have just hit the runway and bounce back into the air in the path of the other engine
Perhaps a different outcome had they been airborne at the time of the bird strike

[Chris]

[quote author=vanNostrum link=topic=6934.msg18766#msg18766 date=1503332746]
[quote author=cgzro link=topic=6934.msg18765#msg18765 date=1503315091]
If thats true we no doubt will see some inlet design changes. Thats a crazy bit of bad luck for a fan blade to fly out, forward, arch over or under the fuse and then get in jested on the other side. Be interesting trying to simulate that bit of physics!
[/quote]

Some of the debris may have just hit the runway and bounce back into the air in the path of the other engine
Perhaps a different outcome had they been airborne at the time of the bird strike
[/quote]


Quite possibly. With flying speed airflow any fragments might have been stuffed back into the first engine rather than making it out.


That being said, the plane I build had to go though an inlet redesign because of this. The fan casing was found to be too rigid and during the blade failure test allowed blade fragments to exit forward rather than containing them all. It was redesigned to make a larger use of Kevlar and other energy-absorbing layers to soak up the impact rather than just reflect it.

[John Swallow]

Eric J:

When I was with TC in the Atlantic Region, I used to work with a chap who'd been an RAF bomber pilot during the war and then had worked for a time with BOAC.  He often say that he preferred flying in aircraft that had at least two engines... (pause, one, two, three) A side!  ('>0)