I don't see how a properly connected and pinned fitting could fail
unless the ball or socket was worn beyond specifications. My guess,
with absolutely no actual information, would be that there was a
material failure and something broke rather than became disconnected.
It would be interesting to see pictures or read the NTSB report. Do you
have more information about the crash?

On 10/13/2016 5:44 PM, Jonathan St. Cloud wrote:
Was it a pinned L'Hotelier that failed on the Nimbus 4M crash in Washington? Does anyone know of failures with properly pinned L'Hotelier?


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Dan, 5J