Airplane Skids Off Runway in Chicago Due to Winter Weather
Jan 19, 2019, 7:09 pm
#17
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Jan 19, 2019, 7:48 pm
#18
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Answering specifically, the typical VRef is weight dependent, but 160 knots is fairly typical for a 772 and 155 is fairly typical for a 739. So not a significant difference. Typical roll-out is also shorter for 739, but either plane can stop a lot shorter than you would find comfortable, if necessary. However perhaps poor breaking action on the runway surface was a factor, or perhaps the wind shifted to a tail wind at the last second. Either way, the accident report will get to the root cause and the good thing is there were no injuries.
Jan 19, 2019, 8:21 pm
#19
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AVHerald has a diagram showing where they apparently ended up. They landed on 4R, so either needed the entire length of the runway to stop (and turned to avoid what appears to be arresting material right at the end?), or they simply slipped off whilst making the turn.
Jan 19, 2019, 8:25 pm
#20
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Like every other plane does in some loading conditions?
Jan 20, 2019, 5:01 am
#23
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The 739 has gained a bit of notoriety amongst pilots for being a bit of a bear (quick google search leads to a number of discussions in pilot forums). That being said does it make it dangerous? Absolutely not! To the contrary it’s absurdly safe. Do we know if this incident had anything to do with the plane’s design / handling characteristics? Nope. Anecdotally though a few 739 drivers I know weren’t terribly surprised that it was a 739 for what it’s worth.
Jan 20, 2019, 5:16 am
#24
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my brother has flown the 727, MD80, 757, and 767, the latter his current airframe. His favorite by far is the 757, but he says it’s day is passing, given today’s economics.
Jan 20, 2019, 11:48 am
#26
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From what I've seen in news reports and the LiveATC.net feed, all three aircraft were at taxi speeds when they slid off the pavement so it doesn't appear that he relatively higher B737 approach speeds were a factor in any of the three incidents.
Jan 20, 2019, 5:22 pm
#28
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Answering specifically, the typical VRef is weight dependent, but 160 knots is fairly typical for a 772 and 155 is fairly typical for a 739. So not a significant difference. Typical roll-out is also shorter for 739, but either plane can stop a lot shorter than you would find comfortable, if necessary. However perhaps poor breaking action on the runway surface was a factor, or perhaps the wind shifted to a tail wind at the last second. Either way, the accident report will get to the root cause and the good thing is there were no injuries.
Jan 20, 2019, 9:20 pm
#29
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The 739 has gained a bit of notoriety amongst pilots for being a bit of a bear (quick google search leads to a number of discussions in pilot forums). That being said does it make it dangerous? Absolutely not! To the contrary it’s absurdly safe. Do we know if this incident had anything to do with the plane’s design / handling characteristics? Nope. Anecdotally though a few 739 drivers I know weren’t terribly surprised that it was a 739 for what it’s worth.
Jan 21, 2019, 5:10 am
#30
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If you read the details, it's quite clear that this incident had nothing whatsoever to do with fast landing speeds. It was caused by an over-speedy turn in icy conditions off the end of the runway onto what was apparently the only taxiway available.