Originally posted by BoeingBobby
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Moscow Passenger Plane Catches Fire, Crash-Lands in Cornfield.
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Originally posted by Evan View PostIt sounds like at least one engine was still turning, though maybe not producing any useful thrust, perhaps still providing hydraulics and electrical power. Control law could have still been normal. Was the gear retracted before the strike? If not, wise to bring it up before the landing.
Thank Бог for cornfields and rivers. Sooner or later this is going to end badly. What can be done that isn't being done?
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Did someone say something about the need for ANOTHER memory checklist?
Originally posted by Evan View PostWas the gear retracted before the strike? If not, wise to bring it up before the landing.Les règles de l'aviation de base découragent de longues périodes de dur tirer vers le haut.
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Originally posted by ATLcrew View PostI'll pass that along.
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Originally posted by Evan View PostI've since read that they leveled off at 750' but there is no confirmation of their height when the actual bird strikes occurred, so it is possible that the gear was still down at that point. Question to you: Can the gear be retracted with the #1 engine at or below idle? Is the PTU on your planes automatically inhibited below 1500ft (this was a recommended retrofit, not a requirement)?
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Originally posted by ATLcrew View PostAs to the first, I imagine it can be, because the EDP produces 3000psi all the way down to 3% N2. As to the second, I'm not aware of our birds having that modification, at least not that I have seen, but I'll ask.
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Originally posted by Evan View PostThe concern was that a green system failure at takeoff would result in the PTU running constantly to supply power from the yellow system, which would then overheat, but, as the overheat ECAM warning is inhibited below 1500ft, the crew would remain unaware, take no action, and the yellow system would also fail. I think this actually occurred. The mod was to inhibit the PTU below 1500ft. Anyway, if the EDP on #1 is able to retract the gear after losing power, this is of no relevance to the thread.
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We are not familiar with OEB-47 1.0 but we are familiar with MOD 34236 + 35879 / SB 29-1115 and MOD 35938 / SB 29-1126.
--- 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 ATLcrew View PostAh! I AM familiar with that issue. Pending verification from my Fleet Chief, it appears our 320s and 321s DO have the mod, while our 319s (except for our two newest ones) do not. I conclude that based on the fact that only those older 319s are subject to OEB-47 1.0 with which you are familiar, I'm sure.
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Originally posted by Evan View PostPTU ECAM Isn't OEB-47 1.0 a deviation from HYD ENG PUMP LO PR and HYD RSVR OVHT? What was the OEB procedure in the QRH?Les règles de l'aviation de base découragent de longues périodes de dur tirer vers le haut.
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Originally posted by ATLcrew View PostWhich part?
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Originally posted by Evan View PostI mean, I'm confused by how you come to that conclusion. OEB's are procedural changes but this issue didn't involve a procedural change. Do you mean that aircraft with the PTU mod wouldn't be subject to OEB-47 1.0 because the mod removed the possibility of these two ECAM messages occurring together? Again, I don't know what was actually contained in OEB-47 1.0, I just know the criteria. I also don't understand how your older 319's are protected from this scenario. I'm genuinely curious.
Per my Fleet Chief, all 320 family aircraft from about msn 4177 have the mod and are thus not subject to the issue. Eventually, all of our birds will have the mod as well.
Hope this helps.
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Originally posted by ATLcrew View PostThe OEB tells us to DISREGARD the Y RSVR OVRHT ECAM procedure that tells us to turn the Y ENG PUMP OFF (and thus lose the Y system). Instead, we are to keep the pump on, but turn the PTU off. This is also the case if we get the G RSVR OVHT ECAM following a Y system failure. The ECAM says to turn the G ENG PUMP OFF, but we are to not do that, and, again, are to turn the PTU off instead.
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