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R66 crash in Wikieup, Arizona, U.S.A., kills 2

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R66 crash in Wikieup, Arizona, U.S.A., kills 2

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Old 22nd Dec 2017, 14:45
  #101 (permalink)  
 
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AC, talked to some of my Vietnam era RAAF Huey instructors and the only thing we can come up with regard to the nose over is the note in the flight manual.
Should the engine malfunction during a left bank maneuver, right cyclic input to level the aircraft must be made simultaneously with collective pitch adjustment. If the collective pitch is decreased without a corresponding right cyclic input, the helicopter will pitch down and the roll rate will increase rapidly, resulting in a significant loss of altitude.
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Old 22nd Dec 2017, 15:29
  #102 (permalink)  
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Originally Posted by megan
AC, talked to some of my Vietnam era RAAF Huey instructors and the only thing we can come up with regard to the nose over is the note in the flight manual.
That makes sense for any CCW turning helicopter. And one would intuitively do this, I reckon.
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Old 26th Jun 2018, 17:36
  #103 (permalink)  
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Wrongful death suit

Apparently the final NSTB report is out. Maybe somebody has to link?

This article from (I suppose) a local newspaper makes reference to the investigation and reports that a lawsuit against RHC has been filed by the families of the two deceased.

The article mentions that the two pilots were "experienced". As previously discussed in this thread their experience may however least have been on the accident type and if I remember correctly mostly on fix-wing aircraft. I am keen to find out what the final report makes of this.
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Old 26th Jun 2018, 19:28
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https://www.ntsb.gov/_layouts/ntsb.a...16FA130&akey=1
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Old 27th Jun 2018, 12:56
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https://app.ntsb.gov/pdfgenerator/Re...Final&IType=FA
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Old 27th Jun 2018, 14:39
  #106 (permalink)  
 
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It's quite some debris field: https://dms.ntsb.gov/public/60000-60...412/609531.pdf I assume it must have been quite low level to have spread itself over 750 yards. By contrast, the Norwegian EC225 hit the ground with no forward speed after the head came off at 2000 ft.
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Old 27th Jun 2018, 14:48
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Missed opportunity

That’s the one.
And I thought we only had useless accident investigations in our part of the world.
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Old 27th Jun 2018, 16:40
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Consider the situation.

Middle of no where Arizona, no radar trace, no data recording, no ELT installed, no witnesses, no survivors.

Add in post crash fire.

As to the length of the debris field....lots of light weight parts being shed....strong winds....not all that amazing it would be as long as it is.

The 225 crash had two main parts....Rotor Head and associated bits...and the airframe.

One thing is certain...the Rotor Blades hit the airframe and the aircraft disintegrated into lots of pieces.

The Investigators worked with what they had.
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Old 27th Jun 2018, 17:38
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Originally Posted by Hot and Hi
That’s the one.
And I thought we only had useless accident investigations in our part of the world.
You can go to the end of the report and click on the link to the docket.
Or click this one:
https://dms.ntsb.gov/pubdms/search/h...docketID=60412
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