Air India Birdstrike KEWR
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Air India Birdstrike KEWR
All OK but blew some tires on landing. Apparently ingested a bird into left engine shortly into flight which caught fire causing a
return.
Flight lands safely after bird strike sparks fire
Air India flight returns to New Jersey airport after bird strike | Reuters
return.
Flight lands safely after bird strike sparks fire
Air India flight returns to New Jersey airport after bird strike | Reuters
I would be surprised that a bird strike would trigger an engine fire on one of those mighty GE90 (maybe a bird flock.. or they were just very unlucky)
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QUOTE: I would be surprised that a bird strike would trigger an engine fire on one of those mighty GE90 (maybe a bird flock.. or they were just very unlucky)
"Mighty GE-90"? No engine is bomb proof and it all depends on the cycle life of the engine, what power it's at, the size of the bird(s) and where the fan assembly is struck.
"Mighty GE-90"? No engine is bomb proof and it all depends on the cycle life of the engine, what power it's at, the size of the bird(s) and where the fan assembly is struck.
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'She added that the flight bound for Mumbai had multiple blown tires that may have been caused by the brakes overheating.'
A 77W with fuel for a 14h flight landing about 20min after takeoff may have been a bit heavy too?
VT-ALR - Air India - Aircraft info and flight history - Flightradar24
A 77W with fuel for a 14h flight landing about 20min after takeoff may have been a bit heavy too?
VT-ALR - Air India - Aircraft info and flight history - Flightradar24
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sounds like a fantastic job by the flight crew
How an Air India Flight Made an Emergency Landing in US After its Engine Caught Fire - NDTV
How an Air India Flight Made an Emergency Landing in US After its Engine Caught Fire - NDTV
The only way I know of that a birdstrike can cause an engine fire is if it causes blade(s) separation, which then goes through the casing and severs a fuel or hydraulic line (hydraulic fluid will burn but not very vigourously, it goes like sticky brown treacle). They shoot chickens into the intake at max N1 during development testing to make sure this doesn't happen.
[There was a story years ago that a frozen chicken was accidentally used once, I don't know if that's an urban myth though]
[There was a story years ago that a frozen chicken was accidentally used once, I don't know if that's an urban myth though]
Quote: 'What with the other two UNITED incidents, the 777 is having a bad week.'
Spoke too soon there
The article states bird strike was ruled out, but is there any indication of the cause of the fire yet?
Spoke too soon there
The article states bird strike was ruled out, but is there any indication of the cause of the fire yet?
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QUOTE: "The only way I know of that a birdstrike can cause an engine fire is if it causes blade(s) separation, which then goes through the casing and severs a fuel or hydraulic line (hydraulic fluid will burn but not very vigourously, it goes like sticky brown treacle). They shoot chickens into the intake at max N1 during development testing to make sure this doesn't happen.
[There was a story years ago that a frozen chicken was accidentally used once, I don't know if that's an urban myth though]"
Your wide of the mark in the whole of your post:
1) The first stage compressor (fan assembly) on a high bypass ratio gas turbine shouldn't penetrate the fan casing otherwise it doesn't get its type approval certificate. Certification tests are carried out during the engine's development stage to ensure this criteria is met. Some engines have high tensile steel casings, others are wrapped with Kevlar.
2) Hydraulic fluid burns extremely vigorously at 3000 PSIG in mist form typical of when a line ruptures. Make that 5000 PSIG on B787 engines.
3)Chickens most certainly aren't used to certify engines ergo the 'urban myth' is exactly that and an utter load of tosh. Birds of a breed consistent with FAA/CAA requirements are raised within a specific time window prior to test and humanely euthanised prior to being weighed and used. This type of testing is a very exact science as there are various requirements to meet. ie. amount of birds in one shot, weight of birds, placement on the fan and combinations of all these.
Of course no amount of testing can account for the extraordinary conditions sometimes met in service, but the engine manufacturers try their damnedest to cover most eventualities.
[There was a story years ago that a frozen chicken was accidentally used once, I don't know if that's an urban myth though]"
Your wide of the mark in the whole of your post:
1) The first stage compressor (fan assembly) on a high bypass ratio gas turbine shouldn't penetrate the fan casing otherwise it doesn't get its type approval certificate. Certification tests are carried out during the engine's development stage to ensure this criteria is met. Some engines have high tensile steel casings, others are wrapped with Kevlar.
2) Hydraulic fluid burns extremely vigorously at 3000 PSIG in mist form typical of when a line ruptures. Make that 5000 PSIG on B787 engines.
3)Chickens most certainly aren't used to certify engines ergo the 'urban myth' is exactly that and an utter load of tosh. Birds of a breed consistent with FAA/CAA requirements are raised within a specific time window prior to test and humanely euthanised prior to being weighed and used. This type of testing is a very exact science as there are various requirements to meet. ie. amount of birds in one shot, weight of birds, placement on the fan and combinations of all these.
Of course no amount of testing can account for the extraordinary conditions sometimes met in service, but the engine manufacturers try their damnedest to cover most eventualities.
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1) The first stage compressor (fan assembly) on a high bypass ratio gas turbine shouldn't penetrate the fan casing otherwise it doesn't get its type approval certificate. Certification tests are carried out during the engine's development stage to ensure this criteria is met. Some engines have high tensile steel casings, others are wrapped with Kevlar.
Still there is no confirmation that an external fire (Other than out the tailpipe) occurred in this incident.
Appears that the incident was within typical pilot training experience
Appears that the incident was within typical pilot training experience
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Air India incident
I remember attending an incident involving a b777 a few years ago where a bird strike caused the engine to flame and smoke initially on take off , then cause severe vibration , followed by an emergency return to LGW . On return an engine inspection revealed 3 or 4 fan blades had failed. I think geese were to blame for this incident .
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Countless examples of uncontained engine failures. Just cause it's part of the certification process doesn't mean it can't happen.
There are also plenty of fools that will blindly deny that uncontained engine failures do occur. I am not suggesting that it happened in this instance, only that it should not ever be disregarded as all engines must pass " Certification tests" in order to gain a type approval certificate.
