Martin S. Posted June 20, 2020 Report Posted June 20, 2020 Good evening everybody, What's the idea behind these locked caps? Are these guys activated by drill-opening the rivets and replacing them by press-in nuts? When are these caps opened? I mean, if it was my bird I would open all of them to regularly check the entire wing from the inside, or be it only for corrosion-prevention measures like ACF50 spraying. Martin Quote
carusoam Posted June 21, 2020 Report Posted June 21, 2020 Martin, There are a few access panels that have the same look... Let’s say that is the access panel at the bottom of the fuel tank.... That is a don’t open area... unless you really mean too... Unknowing people have opened access panels to fuel tanks using electric screw drivers.... to their surprise... Another set of access panels are closed up using brass rivets... you know what’s hiding behind that panel? Expect that you will find a magnetic field sensor... As far as the fasteners used on this particular plane.... something is unique there... Mooneys have typically used machine screws throughout their history... See if you can get better pics, close-ups, of what you have there... What has caused the outline around each hole... Do you have a parts catalog for your plane? The actual hardware That gets used is listed in there... Best regards, -a- Quote
Guest Posted June 21, 2020 Report Posted June 21, 2020 Earlier Mooney models had removable inspection panels between every rib, forward and aft of the main spar. Along the way Mooney started riveting some of these closed with “pop” style rivets. You can open these as needed for additional inspection access or repairs if needed with a drill and rivet them closed afterwards or install nut plates and screws copying the other panels. Clarence Quote
jaylw314 Posted June 21, 2020 Report Posted June 21, 2020 Just now, carusoam said: As far as the fasteners used on this particular plane.... something is unique there... Mooneys have typically used machine screws throughout their history... Really? I've got a bunch of panels closed with pull rivets as well? I suspect some of these access panels were to allow for bucking of rivets on the top skin during construction 1 Quote
carusoam Posted June 21, 2020 Report Posted June 21, 2020 Jay, See Doc’s reply above... My 65C, and 94R must be on either side of the rivet era... Or I have forgotten, and my planes had rivets too... What is causing the scribed line around the fastener? Was there a washer there? Best regards, -a- Quote
MooneyMitch Posted June 21, 2020 Report Posted June 21, 2020 31 minutes ago, carusoam said: Jay, See Doc’s reply above... My 65C, and 94R must be on either side of the rivet era... Or I have forgotten, and my planes had rivets too... What is causing the scribed line around the fastener? Was there a washer there? Best regards, -a- Anthony. My former Ovation, s/n 29-0019 was riveted with riveted wing access panels. 1 Quote
carusoam Posted June 21, 2020 Report Posted June 21, 2020 It’s true... my memory has left the building.... I need to read a few more pages of MS just to catch up... I’ll be here all night! Thanks gents, it’s great being able to re-learn such fine Mooney detail With the best..! Best regards, -a- Thanks go to Mitch... Who has a really strong memory. (Compared to me) 1 Quote
PT20J Posted June 21, 2020 Report Posted June 21, 2020 If you look in the Service Manual you will see that only some of the covers need to be removed for inspection and lubrication. Quote
MooneyMitch Posted June 21, 2020 Report Posted June 21, 2020 1 hour ago, carusoam said: It’s true... my memory has left the building.... I need to read a few more pages of MS just to catch up... I’ll be here all night! Thanks gents, it’s great being able to re-learn such fine Mooney detail With the best..! Best regards, -a- Thanks go to Mitch... Who has a really strong memory. (Compared to me) You’re most kind 1 Quote
Hank Posted June 21, 2020 Report Posted June 21, 2020 10 hours ago, PT20J said: If you look in the Service Manual you will see that only some of the covers need to be removed for inspection and lubrication. I put stainless screws in those panels, and painted the screws and rivets in the rest. Makes it easy at annual time, just remove all the shiny screws . . . . . 2 Quote
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