201J Gross Weight Increase Process

[Marauder]

Hi All -- I have a friend selling his 1989 J (a real cream puff) and a potential buyer is asking what it would require to increase the useful load to 2,900.

Does anyone know if the modification is still available and how to obtain it?

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[KSMooniac]

I might have just answered his question on the email list.  

 

You'll have to go to the TC data on the FAA website and make sure his S/N is in the eligible range.  I believe it points to a Mooney drawing for compliance, and it might just be a re-screen of the airspeed indicator and maybe POH revision.  Any MSC should be able to do it if the plane is eligible, and it shouldn't be crazy money.

[ArtVandelay]

Search for this thread:

Gross Weight Increase STC for J's

Started by Jeff_S , Jan 06 2010 02:56 PM

[Marauder]

I might have just answered his question on the email list.

You'll have to go to the TC data on the FAA website and make sure his S/N is in the eligible range. I believe it points to a Mooney drawing for compliance, and it might just be a re-screen of the airspeed indicator and maybe POH revision. Any MSC should be able to do it if the plane is eligible, and it shouldn't be crazy money.

Thanks! I think he did ask this as well on the MAPA email list. BTW -- anyone looking for a really sweet J, you should check this one out.

N1075C

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[KSMooniac]

Well, I'm curious again and refreshing my memory.  Hopefully his S/N is between 1686 and 3200.

 

Here is the TC link:

http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/cd54a24fc81bae1c86257df20054b12c/$FILE/2A3_Rev_56.pdf

 

Search down to M20J section and you'll find this:

 

S/N 24-3201, 24-3218 thru 24-TBA, and 24-1686 thru 24-3200, 24-3202 thru 24-3217 when c/w MAC dwg. No. 940071 and insertion of applicable AFM supplement - 2900 lbs. gross weight. C.G. Range (+45.0) to (+50.1) at 2900 lbs. (Landing gear extended) (+43.8) to (+50.1) at 2740 lbs. (+41.8) to (+50.1) at 2470 lbs. (+41.0) to (+50.1) at 2250 lbs. or less (Straight line variation between points given). Retraction moment 615 in. -lbs.

 

I don't remember what is in the DWG #940071 but it isn't much.  Doing the Encore conversion on a 252 (+230 lb GW) changes significant hardware.

[Marauder]

Well, I'm curious again and refreshing my memory. Hopefully his S/N is between 1686 and 3200.

Here is the TC link:

http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/cd54a24fc81bae1c86257df20054b12c/$FILE/2A3_Rev_56.pdf

Search down to M20J section and you'll find this:

S/N 24-3201, 24-3218 thru 24-TBA, and 24-1686 thru 24-3200, 24-3202 thru 24-3217 when c/w MAC dwg. No. 940071 and insertion of applicable AFM supplement - 2900 lbs. gross weight. C.G. Range (+45.0) to (+50.1) at 2900 lbs. (Landing gear extended) (+43.8) to (+50.1) at 2740 lbs. (+41.8) to (+50.1) at 2470 lbs. (+41.0) to (+50.1) at 2250 lbs. or less (Straight line variation between points given). Retraction moment 615 in. -lbs.

I don't remember what is in the DWG #940071 but it isn't much. Doing the Encore conversion on a 252 (+230 lb GW) changes significant hardware.

His serial number is 3126. Looks like he is golden. Thanks for the quick response.

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[Parker_Woodruff]

Re-screening of the airspeed indicator and new POH paperwork was what was required when I did this to my 1990 M20J-AT.

 

Quite a nice upgrade.  Watch density altitude at the higher weight and plan departures accordingly.

[smccray]

+1  I did the gross weight upgrade a couple years go.  It was a piece of cake.  Maxwell could tell you what it will cost- it's not a big number as far as upgrades go.