Bird Strike At Chiangmai Airport

[Buff-horns]

Birds grounded Air Asia flight in Chiang Mai

Published on Oct 27 , 2005

Birds grounded Air Asia flight in Chiang Mai

Chiang Mai aviation authority has grounded an Air Asia flight after birds were apparently sucked into its engine while it was taking off on Wednesday.

Sutatra Huangsuwan, director of Chiang Mai airport said that the aircraft was taxiing along the runway before taking off when the pilots alerted the control tower that there is something wrong at the propellers. The pilots then aborted the taking off.

Examination at the propellers found feathers and blood, making the authorities to believe that some birds were sucked into engine.

"Therefore we ground the aircraft and the airline will send a new aircraft to ferry 104 passengers of the aircraft back to Kuala Lumpur.

The director said birds knocking into airplanes were "normal occurrences."

[chuchok]

Bloodyh$ll, for a min I thought that all the birds in the bars around here had gone on strike.Nearly fell off my bar stool.

[sierra01]

Propellers, I thought they used jets!

[Tywais]

Propellers, I thought they used jets!

Probably a turbo prop which is a jet with propellers.

[sierra01]

Propellers, I thought they used jets!

<{POST_SNAPBACK}>

Probably a turbo prop which is a jet with propellers.

<{POST_SNAPBACK}>

I've flown AA a few times and it's always a 727 or 737, they don't have whirly bits on the wings. Sorry, they do but inside not outside.

[Tywais]

Propellers, I thought they used jets!

Probably a turbo prop which is a jet with propellers.

I've flown AA a few times and it's always a 727 or 737, they don't have whirly bits on the wings. Sorry, they do but inside not outside.

You're probably right, just reread the post and they said 104 passengers and then add the crew, just right for a 737. The article is just fubar I would say.

[sierra01]

Propellers, I thought they used jets!

<{POST_SNAPBACK}>

Probably a turbo prop which is a jet with propellers.

<{POST_SNAPBACK}>

I've flown AA a few times and it's always a 727 or 737, they don't have whirly bits on the wings. Sorry, they do but inside not outside.

<{POST_SNAPBACK}>

You're probably right, just reread the post and they said 104 passengers and then add the crew, just right for a 737. The article is just fubar I would say.

<{POST_SNAPBACK}>

Bird strikes are common at airports, they make a bit of a mess inside a jet engine but I don't think they do much actual damage. Saying that I'll probably get jumped on now that they do a lot of damage! If they do then I sit corrected.

[Tywais]

Bird strikes are common at airports, they make a bit of a mess inside a jet engine but I don't think they do much actual damage.  Saying that I'll probably get jumped on now that they do a lot of damage!  If they do then I sit corrected.

Saw a documentary on Boeing engine tests. They take a chicken, load it into an air canon and shoot it into a running engine on a test stand. They do the same with high pressure water to simulate rain storm conditions. No effect at all, except for minced chicken of course. Turbine blades are made from titanium alloys and pretty difficult to fracture,but under the right conditions (large or many birds) can be effected.

Interesting info here:

http://www.birdstrike.us/birdstrike_reports.htm

http://www.aphis.usda.gov/ws/nwrc/field/sa...nt_strikes.html

"For engines of sizes where both types of bird ingestion tests must be conducted, the smaller bird test is usually more difficult to pass. For the larger (four pound) bird test, the engine is allowed to fail. As long as fragments do not pass through the containment ring, the engine does not catch fire, and it retains its ability to be shut down, the manufacturer can pass this particular test. Only a single four-pound bird is launched. The one-and-a-half pound bird test, however, requires that the engine remain operable for five minutes without more than a 25 percent thrust loss. In other words, the engine must be able to slice and swallow the bird without a significant effect. In addition, depending on the engine's size, up to eight of these smaller birds may need to be fired in rapid succession into the fan face to simulate an airplane's passage through a flock."

Edited October 27, 2005 by tywais

[sierra01]

Bird strikes are common at airports, they make a bit of a mess inside a jet engine but I don't think they do much actual damage.  Saying that I'll probably get jumped on now that they do a lot of damage!  If they do then I sit corrected.

<{POST_SNAPBACK}>

Saw a documentary on Boeing engine tests. They take a chicken, load it into an air canon and shoot it into a running engine on a test stand. They do the same with high pressure water to simulate rain storm conditions. No effect at all, except for minced chicken of course. Turbine blades are made from titanium alloys and pretty difficult to fracture,but under the right conditions (large or many birds) can be effected.

Interesting info here:

http://www.birdstrike.us/birdstrike_reports.htm

http://www.aphis.usda.gov/ws/nwrc/field/sa...nt_strikes.html

"For engines of sizes where both types of bird ingestion tests must be conducted, the smaller bird test is usually more difficult to pass. For the larger (four pound) bird test, the engine is allowed to fail. As long as fragments do not pass through the containment ring, the engine does not catch fire, and it retains its ability to be shut down, the manufacturer can pass this particular test. Only a single four-pound bird is launched. The one-and-a-half pound bird test, however, requires that the engine remain operable for five minutes without more than a 25 percent thrust loss. In other words, the engine must be able to slice and swallow the bird without a significant effect. In addition, depending on the engine's size, up to eight of these smaller birds may need to be fired in rapid succession into the fan face to simulate an airplane's passage through a flock."

<{POST_SNAPBACK}>

Oh well, I was partly right/wrong!

[Ricardo]

Thank God it wasn't a flying-elephant

I saw a pink one, keeping formation with us, one flight. But it failed to appear - when the photograph was developed.

[Flysiam]

Naive to think that birds cannot do major damage to an engine. A 4 pound bird is not that big and all it needs to do it strike at the wrong point and the engine is totally out of balance which could potentially destroy the engine. A single small starling just gets minced up - typically no problem. But fly through a flock of gulls or large herron and you could be talking some major damage... oh, and what happens if BOTH engines take a hit? Any bird strike is a problem and we look upon them with GREAT interest in the cockpit.

Bird strikes are common at airports, they make a bit of a mess inside a jet engine but I don't think they do much actual damage.  Saying that I'll probably get jumped on now that they do a lot of damage!  If they do then I sit corrected.

<{POST_SNAPBACK}>

Saw a documentary on Boeing engine tests. They take a chicken, load it into an air canon and shoot it into a running engine on a test stand. They do the same with high pressure water to simulate rain storm conditions. No effect at all, except for minced chicken of course. Turbine blades are made from titanium alloys and pretty difficult to fracture,but under the right conditions (large or many birds) can be effected.

Interesting info here:

http://www.birdstrike.us/birdstrike_reports.htm

http://www.aphis.usda.gov/ws/nwrc/field/sa...nt_strikes.html

"For engines of sizes where both types of bird ingestion tests must be conducted, the smaller bird test is usually more difficult to pass. For the larger (four pound) bird test, the engine is allowed to fail. As long as fragments do not pass through the containment ring, the engine does not catch fire, and it retains its ability to be shut down, the manufacturer can pass this particular test. Only a single four-pound bird is launched. The one-and-a-half pound bird test, however, requires that the engine remain operable for five minutes without more than a 25 percent thrust loss. In other words, the engine must be able to slice and swallow the bird without a significant effect. In addition, depending on the engine's size, up to eight of these smaller birds may need to be fired in rapid succession into the fan face to simulate an airplane's passage through a flock."

<{POST_SNAPBACK}>

Oh well, I was partly right/wrong!

<{POST_SNAPBACK}>

[chuchok]

Naive to think that birds cannot do major damage to an engine.  A 4 pound bird is not that big and all it needs to do it strike at the wrong point and the engine is totally out of balance which could potentially destroy the engine.  A single small starling just gets minced up - typically no problem. But fly through a flock of gulls or large herron and you could be talking some major damage... oh, and what happens if BOTH engines take a hit? Any bird strike is a problem and we look upon them with GREAT interest in the cockpit.

Great interest...thay's it? Blimey, it would certainly get my attention.

[jackr]

Naive to think that birds cannot do major damage to an engine.  A 4 pound bird is not that big and all it needs to do it strike at the wrong point and the engine is totally out of balance which could potentially destroy the engine.  A single small starling just gets minced up - typically no problem. But fly through a flock of gulls or large herron and you could be talking some major damage... oh, and what happens if BOTH engines take a hit? Any bird strike is a problem and we look upon them with GREAT interest in the cockpit.

Great interest...thay's it? Blimey, it would certainly get my attention.

I doubt it; you'd be too busy looking at the bottom of your glass again

[chuchok]

Naive to think that birds cannot do major damage to an engine.  A 4 pound bird is not that big and all it needs to do it strike at the wrong point and the engine is totally out of balance which could potentially destroy the engine.  A single small starling just gets minced up - typically no problem. But fly through a flock of gulls or large herron and you could be talking some major damage... oh, and what happens if BOTH engines take a hit? Any bird strike is a problem and we look upon them with GREAT interest in the cockpit.

Great interest...thay's it? Blimey, it would certainly get my attention.

<{POST_SNAPBACK}>

I doubt it; you'd be too busy looking at the bottom of your glass again

<{POST_SNAPBACK}>

Et tu Jackr