Polish LOT 767 wheels up landing
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Bet the passengers will be glad to get their luggage back - hopefully in one piece
They were jammed in the back of the bay, and the waiting for the luggage has
already been an issue for passengers, so they decided to sacrifice
the containers to shorten the process.
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I do remember the story of a BA B757 on base training duty who could not get the gear down by any means. The solution devised (lucky they had the fuel while the tech gurus devised the solution) was to depressurise the hydraulic system which kept the gear up. Then the back up system could be used and once released aerodynamics + gravity did the rest.
You remember well. In fact story went that Gear Lever actually came off in hand during UP selection, so all gear pressurised up and solution as you posted. There was a procedure in the QRH for that for many years afterwards.
I was going to venture something along the same lines for this LOT incident but you beat me to it in a way. However I think it is possible that this incident will turn out to be gear still pressurised up as that would be the only common link. Perhaps the selector valve stuck/trapped in UP position? Cable snapped after UP selection? This would preclude Gravity procedure.
Just a couple of thoughts.
You remember well. In fact story went that Gear Lever actually came off in hand during UP selection, so all gear pressurised up and solution as you posted. There was a procedure in the QRH for that for many years afterwards.
I was going to venture something along the same lines for this LOT incident but you beat me to it in a way. However I think it is possible that this incident will turn out to be gear still pressurised up as that would be the only common link. Perhaps the selector valve stuck/trapped in UP position? Cable snapped after UP selection? This would preclude Gravity procedure.
Just a couple of thoughts.
During base training, on selecting the gear up a bolt in the gear linkage had worked it's way out (never had a nut on it!!) This left the gear selector not connected to anything (although we didn't know it at the time) and the gear itself being powered up irrespective of any uplocks being removed and gravity(emergency lowering) supposedly taking over.
It was a team effort within the a/c (no "fixes" from the ground engineers). The hydraulic system that was powering the gear up was depressurised and the gear dropped and locked down under gravity. However, even though all pumps were selected off there was slight flow, enough to unlock the main gear (braces moving from locked over centre position). This was overcome by dissipating the pressure/flow from the pump by cycling flap selection on the approach.
At that time Boeing still had a resident engineer at LHR who was rather embarrassed when microscopic examination of the bolt that "fell out" showed it had never had a nut fitted.
If anyone wants further information I still have the ASR report. Ironical that having flown the Trident for over twenty years with not a single problem with the U/C, the first time (base training) with it now being called the Gear we couldn't get it down!!
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...so we don't know why the alternate failed
but
we do know why the primary failed....the pumps had been switched off in response to a contents drop.
Unless the contents had gone completely (unlikely) is there any reason why they couldn't switch the pumps back on and accept a further contents drop till the wheels were locked?
...or have I missed something??
but
we do know why the primary failed....the pumps had been switched off in response to a contents drop.
Unless the contents had gone completely (unlikely) is there any reason why they couldn't switch the pumps back on and accept a further contents drop till the wheels were locked?
...or have I missed something??
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It's not that obvious. There is an inteview with F16 pilot who intercepted the 767 and he says the crew were specifically asking about the tail skid which, as previously mentioned, was indeed extended. I am not sure whether there is any alternative extension method for tail skid, but if there isn't - they must have switched the pumps on again(?).
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Unless the contents had gone completely (unlikely)
why they couldn't switch the pumps back on and accept a further contents drop till the wheels were locked?
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Fratemate
Yes, I've also seen a number of emptied systems but by far the majority have stabilized after completeing the relevent drills - hence "unlikely" but I agree not "impossible".
Can anybody tell me what holds the tail skid up when there's no pressure?
Yes, I've also seen a number of emptied systems but by far the majority have stabilized after completeing the relevent drills - hence "unlikely" but I agree not "impossible".
Can anybody tell me what holds the tail skid up when there's no pressure?
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skyscribbler , but I doubt he wouldn't have liked the 767, great workhorse.
After so many years in service it will be fascinating to see why this "result" never materialised before
, but I doubt he wouldn't have liked the 767, great workhorse.After so many years in service it will be fascinating to see why this "result" never materialised before
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Quick question from an SLF? In that last vid I noticed the slides from the aft doors were at a very shallow angle and difficult (it looked like) to slide down. Got me wondering if there could be scenarios in which the slides are an obstacle to evac - or are they solid enough that they can be walked (run) along as well as slid down?
Thanks for the opportunity to comment - sorry if it's a daft point.
PS - nice of the guy filming to go back and help the lady who'd fallen over behind him
Thanks for the opportunity to comment - sorry if it's a daft point.
PS - nice of the guy filming to go back and help the lady who'd fallen over behind him
Got to give it to the Poles, text book operation in all facets.
Cabin crew weere professional and efficient. Interesting to not the lack of hystaria that would be present in most western cultures.....they just got on with the job of evacuating the aircraft and then apparently a cuppa.
Cabin crew weere professional and efficient. Interesting to not the lack of hystaria that would be present in most western cultures.....they just got on with the job of evacuating the aircraft and then apparently a cuppa.
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The Captain has now to share credit for the fortunate landing with... God, according to ABC News report.
A Roman Catholic friar aboard the Boeing plane that made an emergency landing in Poland says he gripped a tiny lock of hair of the recently beatified Pope John Paul II [relics he took with him] as he prayed for the passengers' survival.
Father Piotr Chyla told The Associated press Thursday that he made the sign of the cross and whispered final absolution for all the 231 people on board while the pilot — who has attained hero status — guided the plane to the ground without wheels after its landing gear failed to deploy.
Chyla says he now credits God, as well as Capt. Tadeusz Wrona and his crew, for the safe landing that some in Poland have hailed as miraculous.
Father Piotr Chyla told The Associated press Thursday that he made the sign of the cross and whispered final absolution for all the 231 people on board while the pilot — who has attained hero status — guided the plane to the ground without wheels after its landing gear failed to deploy.
Chyla says he now credits God, as well as Capt. Tadeusz Wrona and his crew, for the safe landing that some in Poland have hailed as miraculous.