TwinStar Lands with Gear Up Despite Three Green Lights

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pelmet
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TwinStar Lands with Gear Up Despite Three Green Lights

Post by pelmet »

An aircraft that has false gear down indications would be quite concerning....

"C-GXSU, a Diamond DA42 aircraft, was on an IFR test flight with a pilot and examiner on board.
The pilot was conducting a simulated single engine landing on Runway 27 at London (CYXU). It was reported that all landing checks were completed and the landing gear was confirmed down with 3 green down-lock indicators. As the student pilot flared both propellers contacted the ground and the aircraft slid to a stop on the fuselage. Neither pilot was injured; there is substantial damage to both propellers and the lower fuselage. The operators maintenance organization is evaluating the damage and examining the landing gear system.”

Would be nice to find out more.
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Last edited by pelmet on Sun Oct 20, 2019 5:35 am, edited 2 times in total.
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youhavecontrol
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by youhavecontrol »

I haven't flown the DA42, but I'm surprised they didn't feel that the gear wasn't down. Usually the drag from the gear is a required and anticipated part of slowing down and configuring the aircraft to land.
I'm also curious if the DA42 at least has a mirror to allow visual confirmation as well.
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pelmet
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by pelmet »

youhavecontrol wrote: Fri Oct 18, 2019 2:00 pm I haven't flown the DA42, but I'm surprised they didn't feel that the gear wasn't down. Usually the drag from the gear is a required and anticipated part of slowing down and configuring the aircraft to land.
I'm also curious if the DA42 at least has a mirror to allow visual confirmation as well.
I have some time on the DA-42. No mirror.
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anofly
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by anofly »

most twins that have a mirror , did not come with a mirror, someone puts one on,
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pelmet
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by pelmet »

anofly wrote: Wed Oct 30, 2019 3:25 am most twins that have a mirror , did not come with a mirror, someone puts one on,
That has not been my experience. I think only 1 of 5 twin types had a mirror.

Would be curious to know what it was for others here.
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goingnowherefast
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by goingnowherefast »

Buy 4 mirrors, stick on cowling. Then you'd be able to say every twin you've flown has a mirror.
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pelmet
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by pelmet »

goingnowherefast wrote: Wed Oct 30, 2019 5:54 am Buy 4 mirrors, stick on cowling. Then you'd be able to say every twin you've flown has a mirror.
It is an idea but, I didn't own any of these aircraft and I am not going to affix things to someone else's aircraft.

That being said, I did have an electrical failure once. I pumped the gear down and out of paranoia, pumped a few more times after there was a lot of resistance. I do wonder if one could blow a hydraulic line doing this(although I was later assured by a mechanic that it was unlikely). Anyways, the master switch was off for a while and I turned it on again and had just enough electrical power to see a dim green light illumination.
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Last edited by pelmet on Wed Oct 30, 2019 11:45 am, edited 1 time in total.
172ReliefPilot
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by 172ReliefPilot »

gear was down when landing not up.....was there when it happened...
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pelmet
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by pelmet »

172ReliefPilot wrote: Wed Oct 30, 2019 11:31 am gear was down when landing not up.....was there when it happened...
Thanks. That adds a bit more detail as the report says that during the flare, the props contacted the runway giving a possible impression that the gear was not down.

Do you have any further info on how the incident came to be.
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by 172ReliefPilot »

pelmet wrote: Wed Oct 30, 2019 11:44 am
172ReliefPilot wrote: Wed Oct 30, 2019 11:31 am gear was down when landing not up.....was there when it happened...
Thanks. That adds a bit more detail as the report says that during the flare, the props contacted the runway giving a possible impression that the gear was not down.

Do you have any further info on how the incident came to be.
Yes, I do. Essentially Gear was down but didnt lock into place. so did it land gear up, no....but folded in once touchdown...we dont know why it did that but props struck the ground. both pilots okay. situation was handled very well by all personnel involved. plane clear of runway within half hour.
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pelmet
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by pelmet »

Thank you. Hopefully we will hear more about whatever internal investigation is done( ideally with gear swings) to see how there can be three green lights yet three gear not locked down. Potential AD if this is what happened.
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anofly
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by anofly »

Well all the mirrors in the world would not help this situation....
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by photofly »

double post
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DId you hear the one about the jurisprudence fetishist? He got off on a technicality.
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Re: TwinStar Lands with Gear Up Despite Three Green Lights

Post by PT6-114A »

Did he/she pass the ride?
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