Ouch......

smurfjed · 12-04-2017 10:27pm #1

No one got hurt so are we allowed to speculate as to the cause? Happened 13 minutes after they parked the aircraft following a return to land.

Irish Steve · 12-04-2017 10:40pm

I think the one thing we don't need to speculate on is that it will be expensive.

12-04-2017 10:44pm

I'm always turning the wipers on when I try indicating in my partners car.

I'd never borrow her plane, or something like this would happen

scudzilla · 12-04-2017 10:50pm

This may sound totally ridiculous, if someone in the cockpit lifted the gear when it was on the ground would it come up? Guessing the weight of aircraft would stop it

Gaoth Laidir · 12-04-2017 10:59pm

smurfjed wrote: »

No one got hurt so are we allowed to speculate as to the cause? Happened 13 minutes after they parked the aircraft following a return to land.

Where? When? Who?

Irish Steve · 12-04-2017 11:03pm

Weight on wheels switches should prevent operation of the gear switch and retraction of the gear if they are all working correctly, but its not unknown for switches to fail. It would however be strange for the nose gear to retract without the other gear being affected, which suggests to me that there may have been some sort of fault in either the hydraulic system, so a loss of pressure in the downlock mechanism, or possibly a mechanical fault that meant the system that prevents the gear collapsing when in the fully down position was for some reason not working correctly.

The phrase "return to land" implies that some form of technical issue occurred shortly after departure. If that was a hydraulic failure, the crew may have used the alternate extension system to get the gear down, and in that case, it would be normal practise as a matter of urgency after landing to put the gear lock pins (or similar system depending on type) in to position, they are designed to prevent gear collapse in the absence of hydraulic pressure.

PukkaStukka · 12-04-2017 11:09pm

The angle of attack looks quite severe.

billy few mates · 13-04-2017 4:48am

scudzilla wrote: »

This may sound totally ridiculous, if someone in the cockpit lifted the gear when it was on the ground would it come up? Guessing the weight of aircraft would stop it

Depends on the type, not all A/C have weight on wheel or air/ground switches to prevent this, usually main (wing or body) landing gear won't physically retract as they have to move sidewards but nose gears which roll forward normally will retract if selected on ground with no WOW protection system.
There's normally a geometric or overcentre lock to hold the gear down but that lock is 'broken' or released when you select the gear up at the handle so the gear just rolls forward into the bay.

Looking at the pic, the steps were already out when the gear retracted so not a landing or taxi incident.

Gaoth Laidir · 13-04-2017 5:25am

Gaoth Laidir wrote: »

Where? When? Who?

So still no info on this incident? Smurfjed?

smurfjed · 13-04-2017 5:49am

Good Morning....

[font=Arial, Helvetica, sans-serif]Salzburg - An incident occurred on Tuesday morning at Salzburg airport. A US private machine was apparently reversed shortly after the start because of a technical problem. About ten minutes after the safe landing, the nose wheel of the already standing aircraft collapsed on the taxiway. The "Gulfstream G4" fell on the nose. Nobody got hurt. "All inmates are doing well," said the spokesman for Salzburg Airport, Alexander Klaus, at the APA's request. According to the first information, two crew members and two passengers sat in the Gulfstream. The aircraft with the code "N667HS" was picked up at 10:12 in the direction of USA, state of Maine. At 10:15 am, the pilot landed radio contact with the tower due to a return landing. At 10.16 clock the airport was informed by the Tower and the willingness of the airport fire brigade was caused, Klaus said. Fire department after a minute on site "At 10.17 clock the plane landed safely at the airport," the spokesman described. The "Gulfstream" drove off the runway to the taxiway and stopped. "The crew went out and made a safety check on the aircraft, and the landing gear collapsed at 10.30." A minute later, the fire brigade had already been on the scene. At 10:40 am the two passengers were served and cared for in the airport's VIP room. - derstandard.at/2000055765932/Bugrad-einer-Privatmaschine-am-Flughafen-Salzburg-eingebrochen[/font]
[font=Arial, Helvetica, sans-serif]http://derstandard.at/2000055765932/Bugrad-einer-Privatmaschine-am-Flughafen-Salzburg-eingebrochen[/font]

smurfjed · 13-04-2017 6:16am

The Gulfstream has a "Nutcracker" (weight on wheels) system, it can fail in the air or ground mode, following takeoff if it fails in the ground mode, the crew will be unable to retract the gear, pressurise the aircraft etc. Obviously there is a check list to follow if this event occurs. There is no way that the aircraft should have landed within 5 minutes. I guess that the crew didn't review the Paul Allen G550 incident in recurrent.

Which was caused by 2 Ice Cream sticks and too much haste.

cml387 · 13-04-2017 8:00am

Don't you love google translate.

"Inmates"

plodder · 13-04-2017 11:41am

cml387 wrote: »

Don't you love google translate.

"Inmates"

"machine" is a common mis-translation too.

"Please board the machine now ..."

It does a pretty good job though regardless.

billy few mates · 13-04-2017 8:18pm

smurfjed wrote: »

The Gulfstream has a "Nutcracker" (weight on wheels) system, it can fail in the air or ground mode, following takeoff if it fails in the ground mode, the crew will be unable to retract the gear, pressurise the aircraft etc. Obviously there is a check list to follow if this event occurs. There is no way that the aircraft should have landed within 5 minutes. I guess that the crew didn't review the Paul Allen G550 incident in recurrent.

Which was caused by 2 Ice Cream sticks and too much haste.

What was the Paul Allen incident...?