M20F fabric duct in front of throttle body

[Newport Aero LLC]

Good Afternoon All, 

I am looking for a P/N to replace the duct in the attached photo

Any help would be appreciated 

Thanks, 

[Igor_U]

What airplane do you have? This looks to me like "INTAKE DUCT M20 E&F - 600115-005".

there's a list of people waiting for delivery at most of MSC  so you better put your name on it. I see LASAR list it with a new great price ($605)! ouch!

 

[Newport Aero LLC]

It's an M-20F 

[mooniac15u]

Don Maxwell posted on Facebook recently that he had received a shipment.  Maybe @Pmaxwell knows if they still have any.

[Guest]

Unicorn parts!  It would be nice if there was a better option out there.

[Igor_U]

Well,

I just gat the call from Heather at LASAR:

They received 15 ducts and only 7 will be sold to the people on the list. I got one and there are about 30 people on the list. I had waited for over 2 years for it but main reason was also had my old work email or phone number so couldn't reach me. 

It seems all the MSCs are having a long list and could sell a number of parts. At $605, profit margin must be high so I don't understand why the factory doesn't order more as they sell like hot cakes.

[N201MKTurbo]

2 hours ago, Igor_U said:

Well,

I just gat the call from Heather at LASAR:

They received 15 ducts and only 7 will be sold to the people on the list. I got one and there are about 30 people on the list. I had waited for over 2 years for it but main reason was also had my old work email or phone number so couldn't reach me. 

It seems all the MSCs are having a long list and could sell a number of parts. At $605, profit margin must be high so I don't understand why the factory doesn't order more as they sell like hot cakes.

Other people have posted before that Mooney may make them in house. If that's the case, maybe they just can't make them fast enough. I believe they are hand made one at a time.

[Guest]

I wonder if it’s a part McFarlane or someone like Univair would look at?

[Rjfanjet]

I got the last one for the carb version from Maxwell. Almost $700 with shipping.

[M20F]

Upgrade to a RayJay, problem solved!

[PT20J]

On 2/23/2023 at 4:29 PM, M20Doc said:

I wonder if it’s a part McFarlane or someone like Univair would look at?

I talked to a McFarlane rep at their booth at the Northwest Aviation show today. She told me that their decisions about what parts to make mainly come from how many requests they get and if the market is large enough. I’m sure that a lot of Mooney parts would be of interest. She said that the toughest part is getting FAA approval. She also said that they are getting more inquiries about Mooney parts lately.

She mentioned that they have a custom shop that can make an OPP if its something similar to other parts they have the expertise and equipment to make. 

[Igor_U]

On 2/23/2023 at 11:47 AM, N201MKTurbo said:

Other people have posted before that Mooney may make them in house. If that's the case, maybe they just can't make them fast enough. I believe they are hand made one at a time.

Well,

My duct arrived and is marked "Aeroduct". That tells me it's probably manufactured by Thermoid Aeroduct which makes SCAT, SCEET ducts and a lot of custom aviation parts.

[Guest]

They’re likely manufactured to a Mooney proprietary drawing, hence no alternative exists.

[A64Pilot]

On 2/28/2023 at 12:24 PM, M20Doc said:

They’re likely manufactured to a Mooney proprietary drawing, hence no alternative exists.

Unless I’m mistaken anyone with a PMA can build anyone’s parts. Univair etc don’t have to get permission to build all those Cessna and Piper parts that are identical and interchangeable with the OEM parts, even internal engine parts. Univair could produce and sell this duct if they wanted to. You can even buy internal engine parts for your Lycoming or Continental, from other suppliers of course.

The exception I think is if the part has an AD on it, but a little fuzzy on that.

Drawings are the property of the manufacturer, so while a PMA holder can produce the part I believe they have to have their own drawing, which doesn’t have to differ from the original.

Manufactures of contract parts are often under contract to only supply parts to the contractor though, so when we had a Boeing contract, we couldn’t build extra’s and sell them ourselves. 

Many parts are built by non PMA holders but bought by a manufacturer who inducts the part through their Quality control system it then becomes an aircraft part, our engine and prop cables were actually boat control cables for example.

So Mooney could have anyone make that duct and buy it and inspect it and it then becomes a Mooney part

[Kelpro999]

New one p/n 600115-005 on eBay. You may not like the price though 

[N201MKTurbo]

https://www.faa.gov/aircraft/air_cert/design_approvals/pma
 

All you need to know about it.

[podair]

Hi, looks like my M20F's air intake duct will also need to be replaced soon. Any leads on where to source one? I have posted the same question on the main mooneyspace thread, apologies for duplication.

[Yetti]

4 hours ago, podair said:

Hi, looks like my M20F's air intake duct will also need to be replaced soon. Any leads on where to source one? I have posted the same question on the main mooneyspace thread, apologies for duplication.

Call all the MSCs.   SWTA would be one to start with and then the others in your area.

[M Terry]

there is an earlier thread about repairing this duct rather than replacing it. I Recently use the method of painting on RTV then two layers of fiberglass cloth. I'm going to inspect it frequently to see how it holds up

 

[Shadrach]

32 minutes ago, M Terry said:

there is an earlier thread about repairing this duct rather than replacing it. I Recently use the method of painting on RTV then two layers of fiberglass cloth. I'm going to inspect it frequently to see how it holds up

 

CS3204 is far more robust with better adhesive properties than RTV.  I think the key to repairing these ducts is reinforcing them on the outside before the boot becomes compromised on the inside.  I have a new boot in my hangar and have already reinforced it with a coat CS3204 in known wear areas.  We shall see if that simply shifts the wear point to another area.

 

 

 

[DCarlton]

Heads up all!  

Heather is taking orders at LASAR right now.  I just placed an order after being on the wait list for several months.  35 week lead time.  Call her at:

Heather S., Lasar Inc. 

 

541-398-7430- Direct Line

707-263-0412, #2 Parts Dept.

[M Terry]

On 4/9/2024 at 8:38 AM, Shadrach said:

CS3204 is far more robust with better adhesive properties than RTV.  I think the key to repairing these ducts is reinforcing them on the outside before the boot becomes compromised on the inside.  I have a new boot in my hangar and have already reinforced it with a coat CS3204 in known wear areas.  We shall see if that simply shifts the wear point to another area.

 

 

 

Indeed, the RTV remained tacky and a week later i found another hole in the duct. I re-did it with 2 layers of fiberglass and the tank sealant above and below each layer of cloth. I used cotton thread wrapping to keep the gooey fabric tucked into each of the corrugations. Seems pretty bombproof now.

I also added myself to the Lasar wait-list.

I spoke to a A&P at one of the MSCs, He said they wrap them with the self-bonding silicone tape from Spruce