Originally Posted by
Rigga
..always has been a massive Murphy for two reasons:
1. The two pins are the same
2. The blades rotate the wrong way around! (To avoid Bell/Sikorsky patents, I’m told)
That’s what doing a Type Course is supposed to emphasise and I’m still not sure how ‘they’ managed to complete the installation and inspections.
I have seen almost as bad on Puma Tail Rotor controls too. Can’t do this on a Chinook as the Lag Damper won’t fit!
I pulled out my old SuperPuma course notes for a look and I can't see any mention of a fooling block to prevent the blades going in upside down. However it shows a bonding lead from the top of the grip to the top surface of the blade.
Assuming that this hasn't been modified out I wonder what happened there. One appears to be visible on the adjacent blade aft.