I spent yesterday afternoon at the hangar, probably the hottest day of the year, sweating and doing the ram air butterfly valve loose screw service bulletin.  Sure enough, one screw was finger tight.  The other screw was Allen wrench tight. 

 

Thanks to the LML and a special thanks to Erik.  When this issue first arose, I implemented the same "check it often with a mirror and flashlight" procedure as Erik, hoping that would be sufficient.  Erik's report on the LML about how quickly the screw backs out, combined with Lancair publishing the SB, scared me into checking it and I'm so glad I did!  Thanks!

 

Dennis Johnson

Legacy N52PT 75 hours tach time