Triple 7 engine parts raining from the sky in Denver.
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777 fan-blade / cowling failure over Denver
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Originally posted by BoeingBobby View PostTriple 7 engine parts raining from the sky in Denver.
I would like to see the A/C. There were a lot of parts on the ground, so it appears very little containment. Wonder if there was fuselage penetration.
Edit: https://www.yahoo.com/news/plane-deb...215918585.html
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Cheap crackerbox, eh? At least those CFRP structures don't seem to do as much damage when they fall out of the sky. I guess one thing we learn here is that the fire suppression doesn't work very well without the cowling. Funny thing that the pax cheered upon touching down with a now-upward burning fire under a fuel-laden, possibly punctured wing. I'd be halfway out the door. No mention of whether slides were deployed...
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Originally posted by xspeedy View Post
Those were just the ashes falling from Colorado’s largest flying doobie.
I would like to see the A/C. There were a lot of parts on the ground, so it appears very little containment. Wonder if there was fuselage penetration.
Edit: https://www.yahoo.com/news/plane-deb...215918585.html
Containment doesn't mean that no parts fall to the ground. Containment means that no high-energy rotating parts (that is, fan, compressor and turbine blades) are shot through the casing.
parts expulsed through the tailpipe are totally legit from the "containment" point of view. Parts being expulsed forward or cowlings falling off are less conventional, but still don't cualify as "uncontained damage".
--- Judge what is said by the merits of what is said, not by the credentials of who said it. ---
--- Defend what you say with arguments, not by imposing your credentials ---
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Originally posted by Evan View PostFunny thing that the pax cheered upon touching down with a now-upward burning fire under a fuel-laden, possibly punctured wing. I'd be halfway out the door. No mention of whether slides were deployed...
--- Judge what is said by the merits of what is said, not by the credentials of who said it. ---
--- Defend what you say with arguments, not by imposing your credentials ---
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Originally posted by Gabriel View Post
Actually, it doesn't seem to be an uncontained damage.
Containment doesn't mean that no parts fall to the ground. Containment means that no high-energy rotating parts (that is, fan, compressor and turbine blades) are shot through the casing.
parts expulsed through the tailpipe are totally legit from the "containment" point of view. Parts being expulsed forward or cowlings falling off are less conventional, but still don't cualify as "uncontained damage".
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Originally posted by Gabriel View PostActually, it doesn't seem to be an uncontained damage.
The issue I see in need of consideration is the ineffectiveness of fire suppression when the cowling disintegrates. Perhaps these structures need more robust requirements. What if this happened over the Pacific hours away from a diversion airport? Could that fire become dangerous? I think, probably not but it needs to be considered.
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Originally posted by Evan View Post
These cowling-shedding incidents seem to be the result of inlet damage caused by departing fan blades and the resulting aerodynamic forces on the remaining structures. I imagine this was initially a fan separation, not uncontained core failure. However, parts were ingested and it is possible that this caused internal damage that might have breached the engine core. But the fire seems to be coming from something other than fuel, perhaps hydraulic fluid from damage to the external accessories.
The issue I see in need of consideration is the ineffectiveness of fire suppression when the cowling disintegrates. Perhaps these structures need more robust requirements. What if this happened over the Pacific hours away from a diversion airport? Could that fire become dangerous? I think, probably not but it needs to be considered.
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The dude with the ring in his yard needs to claim it as his property and do something cool with it...flower bed or maybe decoration around a chandelier in the dining room.Les règles de l'aviation de base découragent de longues périodes de dur tirer vers le haut.
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