Crankshaft failure in flight, lost propeller, no injuries

[Dave Wolfe]

Congrats on a safe outcome!

How many hours were on the engine?

The 2.1 crankshaft and hub use a smaller diameter bolt so crankshaft failure is less likely. Failures originate with cracks between the keyway and inner diameter of the prop hub main bolt.

This page shows the two different crankshafts:

https://onex-svingenb.blogspot.com/p/pr ... s.html?m=1

[jerryhain]

As a flight instructor, I would like to congratulate you on maintaining your cool and keeping your situational awareness. Very few pilots get to experience a true emergency. Out of curiosity, do you happen to be a glider pilot as well?

[peter anson]

Out of curiosity, do you happen to be a glider pilot as well?

If he wasn't before, he is now.

Congratulations on getting down safely in what was obviously challenging conditions.

Peter

[tps8903]

Out of curiosity, do you happen to be a glider pilot as well?

If he wasn't before, he is now.

Congratulations on getting down safely in what was obviously challenging conditions.

Peter

Involuntary glider pilot life achievement unlocked.

[Weatherpilot]

Nice job getting her down. Any idea where the prop/spinner/crank ended up?

Again - great aviating. My hat's off to you.

Greg.

[karmarepair]

Please take pictures of the fracture surface of what's left of the crank, both from a bit of a distance, and from as close as possible. The fine scale details of the fracture surface can tell a LOT about how the failure started.