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Flying Bull
27th Jan 2014, 07:05
Hi all,
Luckily nobody was hurt, a resucue-helicopter slid into a snowmobile.
Oberwiesenthal: Hubschrauber-Landung am Fichtelberg missglückt - Freie Presse (http://www.freiepresse.de/LOKALES/ERZGEBIRGE/ANNABERG/Oberwiesenthal-Hubschrauber-Landung-am-Fichtelberg-missglueckt-artikel8685651.php)
There is a video on Facebook about that incident.
The EC135 landed, put up again on a different spot and started to slide while shutting down....
Fly Safe

oyNMyZ3eh5E

Not the video with the whole sequence, just the sliding

http://www.freiepresse.de/DYNIMG/78/32/4497832_W700.jpg

skadi
27th Jan 2014, 07:55
FlyingBull, please read over before posting! ( Länder? Ehen? )

skadi

skadi
27th Jan 2014, 08:11
Full video, landing incl., is on Facebook, just search user "Local Hutmacher (https://www.facebook.com/photo.php?v=565118953579357&set=vb.100002437736887&type=2&theater)"

skadi

RVDT
27th Jan 2014, 09:57
Looks expensive!

A blade looks like it hits one of the poles in the ground on the RHS of the aircraft as it slides backwards.

On rundown it is a long way out of track!

Looks like the control cuff has failed at impact.

Definitely wont polish out!

http://www.blaulicht-paparazzo.de/wp-content/uploads/2014/01/140126-Hubschrauber-13.jpg

Phoinix
27th Jan 2014, 10:21
I don't think the cuff failed on impact. When it started to slid, the cyclic correction was huge and you can hear something crack, the helicopter shakes violently and continues downhill before blade impact.

Talk about bad luck... I'm glad nobody got hurt.

RVDT
27th Jan 2014, 10:40
Phoinix,

Good observation! Just looked at the Book Face video in HD.

Winter Tipps maybe!

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSN1LbN9yqO4RdoCck_lTJ6i055IEAk3NImdfFU8yr-8Dx0FYzM

cattletruck
27th Jan 2014, 10:54
The snowmobile getting wedged behind stopped it sliding further. Bad luck yes, but a bit of good luck too.

Slope landing 101 is to apply a bit of cyclic towards the down slope to test security before reducing to ground idle, it may/may not have been done here, the slide could also have been triggered by a bit of rocking from slow turning blades.

Glad nobody was injured.

Vertical Freedom
27th Jan 2014, 13:45
Here we have an classic oooops moment; not doing a thorough security/stability check after landing; by first stirring cyclic & a dance on the pedals - sad, forgetting to do that vital after landing check before throttling down :yuk: :ugh: :mad: in winter we regularly have slippery ice to land on, soft deep snow, on remote off Helipads there are loose uneven rocks, swamp & bunch of conditions that may cause instability....so always, always; check first, thoroughly :ooh: before selecting idle :confused: :=

Great Blessings for All, around bystanders etc. as no one got hurt :ok:

Land back Happy - always :)

Flying Bull
27th Jan 2014, 14:12
@skadi - sorry, posted using an IPad mini - and the bloody spellchecking mixed things up.
Hope everypody got the info watching the video

Greetings Flying Bull

Wetbulb
27th Jan 2014, 18:19
If the snowmobile hadn't been there, they could, quite literally, have turned 'NOTARZT' into 'NOTAR'.

nomorehelosforme
27th Jan 2014, 18:28
Bet the pilot is well pi***d off and has some explaining to do! No mention of why he was landing there? Assume rescue? Did another Helicopter attend to facilitate the rescue?

rugmuncher
27th Jan 2014, 18:40
Maybe he mistook it for a treadmill !:}

MightyGem
27th Jan 2014, 20:49
Well, he's not the first to slide down an icy slope. Mind you, it does seem a bit steep, and you'd have thought that the slide on the first attempt would have given a clue. :rolleyes:

awblain
27th Jan 2014, 20:56
Does the structure in the reflection on the top of the tail boom, aft of the horizontal stabilizer and forward of the fin, indicate expensive bending in RVDT's photo, or is that just the pattern of the local snow/trees?

aa777888
28th Jan 2014, 00:49
Very timely. I am a low time private working on commercial and did my first ice op's two days ago. I also noticed the slide on the first touch down. It is most unfortunate that, while it appears the pilot recognized the initial slide, was not able to or simply did not identify the problem on the second touchdown.

Not that I'm fully qualified to judge in any way, but given the recognition of the initial slide, it might be a case of "sh*t happens" in that after the pilot tested the second touchdown and while it passed his test it could have been such a marginal pass that he was caught without the rotor disc energy to solve the problem when it did finally break loose.

Kulwin Park
28th Jan 2014, 02:33
Does anyone have any close-up pictures of the blade strike, or root of the blade?
For something to give way at the blade root, for such a low speed strike during wind down, why would the blade snap, and not cause more damage at the leading edge?
Anyone know anymore info about the blade - just curious?
Thanks. KP

Smokeyboy
28th Jan 2014, 03:15
http://www.freiepresse.de/DYNGAL/22020/264224_W606.jpg

Kulwin Park
28th Jan 2014, 12:50
OUCH!! :eek:
Thankyou SmokeyBoy for that picture

RVDT
28th Jan 2014, 15:24
As Phoinix pointed out from the HD Video.

Big cyclic excursion forward at low RRPM.

This is the first place you inspect if MM exceeds limits.