Darren, while your conclusion is generally dictated in 43.13, there are examples where the use of a self locking nut is acceptable. A couple of examples: picture an aileron bellcrank with a hollow core pivot point, if a spacer is inserted through that pivot point which allows the nylok to tighten up against the spacer, even though the bellcrank moves, the bolt/nylok combination does not. Another example would be an aileron pivot bracket mounted to a wing. Once again, if a spacer is used between the two flanges of the bracket, which allows the nylok to tighten down, it is acceptable. I was careful to use the word generally in my first sentence as there are places where a piece moves and a nylok is acceptable.
Dana Overall Richmond, KY i39 RV-7 slider "Black Magic" Flying..well sorta, useta, kinda Barrett Precision O 360 A1A Hartzell C2YR-1BFP/F7497-2 http://rvflying.tripod.com/blackmagic.jpg http://www.youtube.com/watch?v=MMi05-WU2D0#GU5U2spHI_4 http://rvflying.tripod.com do not archive _________________________________________________________________ Express your personality in color! Preview and select themes for HotmailĀ®. http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme