collapse

* User Info

 
 
Welcome, Guest. Please login or register.

* Recent Posts

Rudder push rod felt washers by Adam Howell
[08 August 2024, 11:51]


inspection hatch with air extractor by Adam Howell
[16 May 2024, 13:46]


Introduction by ElliottWabFZ
[28 February 2024, 08:13]


Replacing the brake cable on an ASW15B by Roger Cichy
[18 April 2023, 22:39]


polar curve by Adam Howell
[01 April 2023, 14:14]

Advertisement


Author Topic: Bell crank failure  (Read 6946 times)

Offline Terry Fagg

  • Silver Member
  • **
  • Posts: 6
Bell crank failure
« on: 04 November 2004, 18:57 »
I had a bell crank failure in VH-GYU in 1980. I notice there was an AD on this in1984. Is there anyone else out there who had one as well? I saw that N3644 crashed because of such a failure but i got GYU back on the ground more or less okay.

Post edited by: ashtree, at: 2004/11/04 12:58

Offline Johan van Ravenzwaaij

  • Administrator
  • Hero Member
  • *****
  • Posts: 342
  • The sky ain't the limit
  • Stationned at airfield: Terlet, Gelderland, The Netherlands
Re:Bell crank failure
« Reply #1 on: 15 November 2004, 02:13 »
My 15 has the bellcrank modification, don't know of more of those stories. Could you tell us what happend? Looks to me it was a terrifying experience!
Conquer the skies with the Gelderse Soaring Club

Offline Terry Fagg

  • Silver Member
  • **
  • Posts: 6
Re:Bell crank failure
« Reply #2 on: 19 November 2004, 08:14 »
It was a wild ride. After a fairly normal climb in strong conditions to about 7000 ft i gradually ran out of elevator control and was flying around with the control columm full forward and maintaining about 50 knots. Moving the stick had virtually no effect.Flying in and out of thermals caused the nose to pitch up and down and was often on the verge of stalling. Airbrakes cause a nose up and lowering the wheel would knock off a few knots as well. It was a simple matter of floating around until i got near the ground. This took about 2 hours to come down. I did a very long low flat approach with the wheel down and just a fraction of airbrake . Got close to the ground , and flopped in with some airbrake and the stick hard back. This actually broke the bell crank right off which had been attached but bent and just about broken right through. I got back onto the home field , but the duty instructor gave me a real talking to about such a bad approach and landing until he realised what was happenning.

Offline Gerry Whitson

  • Gold Member
  • ***
  • Posts: 23
Re:Bell crank failure
« Reply #3 on: 22 November 2004, 01:41 »
When I purchased my ASW-15 the seller gave me a re-enforcement kit.
What was the AD?  Did it require inspection or modification?  gerry

Offline Johan van Ravenzwaaij

  • Administrator
  • Hero Member
  • *****
  • Posts: 342
  • The sky ain't the limit
  • Stationned at airfield: Terlet, Gelderland, The Netherlands
Re:Bell crank failure
« Reply #4 on: 22 November 2004, 01:55 »
Check out the "ASW15 facts & more"section: ther you find AD 84-20-01 concerning this.

If you have the re-enforcement kit already, then its wise to do the modifiction anyhow. See ashtree's story why!
Conquer the skies with the Gelderse Soaring Club

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal