767 Hard Landing IAH ???
08-08-2023, 06:40 PM
#271
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Joined APC: Feb 2022
Position: B737NG forward-facing aft lav
Posts: 127
How does the plane touch down on the mains, then pitch up from manual deployment of the speed brakes, then "bounce" twice?
Doesn't make sense.
08-08-2023, 07:25 PM
#272
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Originally Posted by EyeKantEven;[url=tel:3679888
3679888]Yeah.
How does the plane touch down on the mains, then pitch up from manual deployment of the speed brakes, then "bounce" twice?
Doesn't make sense.
How does the plane touch down on the mains, then pitch up from manual deployment of the speed brakes, then "bounce" twice?
Doesn't make sense.
Who in their right mind would tell someone to push on a bounce? Let alone an LCA?
08-08-2023, 08:24 PM
#273
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Position: 757/767 Capt
Posts: 649
When the auto speed brakes are deferred and you have to manually extend them, I teach new pilots to extend them slowly as in “ One potato, 2 Potato, 3 Potato, Four”. So it should take about 4 seconds to smoothly extend the speed brakes. If you extend them quickly you will get a very pronounced pitch up that will be faster and a higher rate than the normal slight pitch up that the Auto speed brakes exhibit. If you slam them out, you’re in for a wild ride!
08-09-2023, 03:21 AM
#274
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Joined APC: Dec 2021
Posts: 513
In the incident report the crew reported that they had briefed the deferral and were aware of its effect on the flight. Maybe someone here can address the MEL but I am sure it addresses the pitch up tendencies when manually deployed too rapidly. Most swept wing airplanes do this. Unloading the wing on a bounce has got to be one of the most curious things she could have commanded in that moment unless she was so unaware that they had bounced.
08-09-2023, 03:33 AM
#275
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When the auto speed brakes are deferred and you have to manually extend them, I teach new pilots to extend them slowly as in “ One potato, 2 Potato, 3 Potato, Four”. So it should take about 4 seconds to smoothly extend the speed brakes. If you extend them quickly you will get a very pronounced pitch up that will be faster and a higher rate than the normal slight pitch up that the Auto speed brakes exhibit. If you slam them out, you’re in for a wild ride!
08-09-2023, 04:09 AM
#276
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Joined APC: Nov 2005
Position: 757/767 Capt
Posts: 649
Correct, and it’s abrupt and startling.
08-09-2023, 05:31 AM
#277
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Joined APC: Feb 2022
Position: B737NG forward-facing aft lav
Posts: 127
She says pushed because of fear of a tail strike... BEFORE the bounce
What also doesn't make sense is she claims she pulled the boards AFTER TOUCHDOWN, and THEN the airplane bounced. Not plausible.
Last edited by EyeKantEven; 08-09-2023 at 05:41 AM.
08-09-2023, 07:57 AM
#280
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Joined APC: Dec 2021
Posts: 513
It is plausible. Boeing philosophy and design for spoiler deployment. The spoilers only need main gear (both) untilt and idle throttles. If the aircraft bounces the spoilers can be deployed if done automatically or manually. Startle effect must have been pretty apparent for her to do something like she did. In the string of events that are causal this one was near the middle. This could have been easily recoverably if handled properly unfortunately the unloading of the wing was the death nail. This is a cardinal rule and should never be done. If she was worried about the tail she should have held the pitch and gone around.
Last edited by Nordhavn; 08-09-2023 at 08:30 AM.
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