M20J Top Access Panel Screws

[Marauder]

Anyone know what purpose the screws serve on the wing walk area outside of the access panel?

In this picture I circled where the oval access panel is. And circled the screw in question in blue. There a couple of screws outside of this panel.

On the second picture the blue arrow points to the screw. The reason we are asking is that before we have a non-Mooney mechanic reseal the screw, we want to know what is attached to it. If anything.

Sent from my iPad using Tapatalk

[N201MKTurbo]

They are for the reinforcement panel under the wing walk. If you take apart the tank it will be very clear.

if you remove the screws and put some sealant on them and put them back in it will probably stop the leak.

[N201MKTurbo]

More precisely there are two pieces of angle aluminum fastened to the access panel to strengthen it for the wing walk. Those four screws go into the ends of the angles.

[N201MKTurbo]

When you remove those screws try not to push down on them after you break them loose, you could break the sealant bond between the cover or angle and the skin. After you remove the screws you need to clean the sealant out of the nutplates with a small drill bit that you spin on your fingers. Do this until you see shiny metal at the bottom of the nut plate. If you don't do this you  could push the bottoms of the nutplates off when you tighten the screws.

[Marauder]

  On 12/18/2016 at 2:11 PM, N201MKTurbo said:

When you remove those screws try not to push down on them after you break them loose, you could break the sealant bond between the cover or angle and the skin. After you remove the screws you need to clean the sealant out of the nutplates with a small drill bit that you spin on your fingers. Do this until you see shiny metal at the bottom of the nut plate. If you don't do this you  could push the bottoms of the nutplates off when you tighten the screws.

Thanks for the quick response on this. The recommendation was to remove the screws and put sealant on them but the concern was if there was something attached to it.

Much appreciated!


Sent from my iPad using Tapatalk

[N201MKTurbo]

You can see below what I s under the cover. The earlier reinforced covers just had angles, but same idea.

Edited December 18, 2016 by N201MKTurbo

[Marauder]

  On 12/18/2016 at 3:47 PM, N201MKTurbo said:

You can see below what I s under the cover. The earlier reinforced covers just had angles, but same idea.

Now it makes absolute sense. Thanks for sharing!


Sent from my iPad using Tapatalk

[Bob_Belville]

Interesting. You have O&N bladders, right?

[LANCECASPER]

Every Mooney I've had when I bought it leaked from one of those two screws. Putting in the right size screw with this on it has fixed it every time: http://www.aircraftspruce.com/catalog/eppages/permatexprod4.php?clickkey=288791

It is slow drying especially this time of the year. I've let it dry and cure usually for a week and then used this for wing walk: http://www.kofflersales.com/p/anti-slip-abrasive-tape.asp?cid=23

I order the KSC regular grip by the foot, 24" wide. You can do the wing walk for about $50 shipped.  It turns out great.

 

[carusoam]

Consider the source...

This looks like some form of a set-up!

The 24 year F owner, has found a J suffering from personnel support issues.

Some large scale piece of humor is coming this, I just know it. 

I do like the color matching wing walk materials.

Great photo exposé, M201MKT!  Not everyone knows about the girder under there.

Best regards,

-a-

[Marauder]

  On 12/18/2016 at 8:02 PM, Bob_Belville said:

Interesting. You have O&N bladders, right?

Not my plane, but I have these screws as well.


Sent from my iPad using Tapatalk

[Bob_Belville]

  On 12/19/2016 at 2:35 AM, Marauder said:

 

Not my plane, but I have these screws as well.


Sent from my iPad using Tapatalk

 

Expand  

Understand. I'm sure I have the trusses as well and that there are screws, I was puzzled to think you had leaking at screws with bladders.