<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> My Pressurized FB Door had a warning label on the interior panel that stated that the bolt installation and torque should be verified by the installer. This, I discovered, was there for a good reason.
While deepening the countersinking of the screw holes for the door latches, I discovered two screws that were so short that the fiber-lock portion of the nuts were barely engaged. Upon further inspection I found that the screws could not be lengthened because they would then interfere with the chain sprocket operation. I replaced the AN365 nuts with MS21042-3's. This allowed at least 1 thread showing after torque and still clearance for the chain and sprocket. The two affected screws are on the bottom-most latch of the side latches (not the three bottom latches). Buried under the chain and sprocket (in a most inaccessible location) is the target nut and screw. You'll have to "unhook" (but not remove) the chain to get at the nut. I checked this out with another builder who hasn't yet installed his FB door. Sure enough, his were in the same condition as mine. It might be a good idea to check this out before you get stuck in your plane because a nut came loose and jammed the door mechanism. Hal >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/mkaye/maillist.html LML Builders' Bookstore: http://www.buildersbooks.com/lancair Please send your photos and drawings to [EMAIL PROTECTED] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>