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Ohio - EMS BK-117 accident video - no injuries

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Ohio - EMS BK-117 accident video - no injuries

Old 14th Oct 2020, 01:48
  #1 (permalink)  
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Join Date: Dec 2003
Location: Melbourne, Australia
Posts: 188
Ohio - EMS BK-117 accident video - no injuries

No one knew about the fence being there and it was obscured by tall grass. Is all grass usually kept quite low at airfields to avoid this kind of problem?

Tickle is offline  
Old 14th Oct 2020, 06:48
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Join Date: Apr 2005
Location: OZ
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Nasty surprise.
Well handled, resulting in no injuries!
Twist & Shout is offline  
Old 14th Oct 2020, 07:01
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Join Date: Feb 2005
Location: On the green bit near the blue wobbly stuff
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Thats something you would not be expecting! It reminded me of a snake striking.
Non-PC Plod is offline  
Old 14th Oct 2020, 20:03
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Join Date: Jul 1999
Location: Warrington, UK
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FOD rather than a fence, I think.
MightyGem is offline  
Old 14th Oct 2020, 20:49
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Join Date: Apr 2010
Location: USA
Posts: 595
In the US we call that "silt fence". It is used on construction sites for a variety of erosion control purposes, and indeed the Youtube video description reads "As the helicopter began to take off following the hover, it traversed a grassy area adjacent to the ramp about 10 ft above ground level, where a silt construction fence was obscured by tall grass. As the helicopter overflew the fence, it became unsecured, blowing up and into the helicopterís main and tail rotor system."

I wasn't there, obviously, but I'm betting it was clearly visible to the pilots and not at all "obscured by tall grass". It looked like it was protecting against erosion along the edge of the construction area, which is not unusual at all. Sometimes it is placed vertically on stakes. Other times it is stapled down to the ground with long turf or ground staples. Sometimes it is held down with sandbags.

That said, an easy thing to overlook, particularly if you had already overflown it without incident.

Scary stuff!
aa777888 is online now  
Old 14th Oct 2020, 23:37
  #6 (permalink)  
Join Date: May 2002
Location: Wanaka, NZ
Posts: 2,249
Might think about hover taxiing over paved areas when operating from facilities in the future. Blowing over somebody's Cessna would be far less expensive than trashing your whole helicopter powertrain.
gulliBell is online now  
Old 18th Oct 2020, 22:55
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Join Date: Nov 2003
Location: UK/OZ
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What is involved in examining the aircraft to check for structural damage?

mickjoebill is offline  
Old 19th Oct 2020, 02:52
  #8 (permalink)  
Join Date: Nov 2006
Location: After all, what’s more important than proving to someone on the internet that they’re wrong? - Manson
Posts: 1,560
Inspect just about everything - door fits out of whack means fuselage deformation, if the belly has touched the ground (which appears so as it is sitting on it) assumption is more than 10 g and engine removal and inspection required.
The list is much longer of course but those are the items which may make it BER.
RVDT is offline  

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