rgmwa Posted July 5, 2014 Share Posted July 5, 2014 This safety bulletin was issued recently by the FAA. It affects commonly used MS21042 and some other types of metal lock nuts. If you use any of these it would pay to check by torqueing the nuts to the recommended values. http://www.rotor.com/rotornews/April14/HQ-14-16.pdf rgmwa 1 Link to comment Share on other sites More sharing options...
M61A1 Posted July 5, 2014 Share Posted July 5, 2014 I have used thousands of these, and never seen one cracked. Link to comment Share on other sites More sharing options...
rgmwa Posted July 6, 2014 Author Share Posted July 6, 2014 Same here, although I certainly haven't used thousands. It's obviously not a widespread problem. Anyway there's the information, so take it for what its worth. rgmwa Link to comment Share on other sites More sharing options...
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