Type Data Sheet 2A3, Required Equipment

[0TreeLemur]

From the type data sheet entry for the M20J:

In addition to the pertinent required basic equipment specified in CAR 3, the following
items of equipment must be installed: 1(a)(1) or 1(a)(2), (b), (c), or 2(a)(1), 2(b)(1) and
1(c), 101(a), (b), or (c), 102(a), 103(a), 104(a) or (b), 201(a), 202(a), 205(a), 206(a),
301(a) and 303(a), 301(b) and 303(b), 302(a) or (b) or (c), 401(a) or (b) or (c) or (d) or
(e) or (f) or (g) or (h) or (i) or (j) or (k) or (l) or (m), 601(a), (b) or (c), 602(a) or (b) or (c)
or (d) or (e).

As I'm getting to know a "new-to-us" J model, questions arise about the current configuration.   This J has had six previous owners and had a fair bit of work done to it over the past 40 years.  How does a person interpret this gibberish?  Can someone point me to an index?   For example: Where can I find a description of item 104(a)?

Thanks,

Fred

[MikeOH]

It's like an 'appendix'; should be 'in the back' as footnotes.

[PT20J]

Those numbers refer to specific subsequent sections in the TCDS for that model. Keep reading. For instance, 200s are landing gear, 400s are interior equipment, etc. NOTES are at the very end of the TCDS document.

Skip

[jlunseth]

Yup, its in the notes. Here’s an example. The Required Equipment for the J includes a “102(a). If you read down further that is a specific model of a Stewart Warner oil radiator.

Edited January 21, 2023 by jlunseth

[EricJ]

+1, it's just all the stuff that follows in the TCDS as it's listed.  e.g., 1(a)1 and 1(a)2 are two types of McCauley propellers listed, etc., etc...

 

[0TreeLemur]

Oh.   That's disappointing.

Here's what led to my question:  My J has a rotating beacon on the belly.  It's kind of wimpy because it isn't very bright.  My C had a strobe.   I would think that a strobe visible miles away would be much better.

I was looking to answer the question- is the rotating beacon required equipment or can it be replaced with a strobe?

[takair]

7 hours ago, 0TreeLemur said:

Oh.   That's disappointing.

Here's what led to my question:  My J has a rotating beacon on the belly.  It's kind of wimpy because it isn't very bright.  My C had a strobe.   I would think that a strobe visible miles away would be much better.

I was looking to answer the question- is the rotating beacon required equipment or can it be replaced with a strobe?

I think this is why lights often have an STC….they can override the TC.  So, you should be able to do it with an STCd strobe.

[0TreeLemur]

1 hour ago, takair said:

I think this is why lights often have an STC….they can override the TC.  So, you should be able to do it with an STCd strobe.

You somehow just helped me make some sense out of alphabet soup! 

Find a strobe that has the M20J on its STC AML and I'll avoid a BFD with the FAA.

 

[ArtVandelay]

2 hours ago, 0TreeLemur said:

You somehow just helped me make some sense out of alphabet soup! 

Find a strobe that has the M20J on its STC AML and I'll avoid a BFD with the FAA.

 

My 78 has strobes which were not OE, but remember the strobes must cover 360°.

[PT20J]

Now you are getting into the somewhat complex and confusing area of what parts may be installed on a certificated airplane and who is permitted to install them and what logbook entries are required. Since you are going to have to have annual inspections done by an mechanic with an Inspection Authorization (IA) my suggestion is to develop a good working relationship with that person as soon as possible and discuss how to proceed with various repairs and improvements with the IA. That way, come annual time there won't be any explaining to do. For instance, an STC requires filing a form 337 with the FAA which must be signed by the IA, and most IAs take a dim view of someone coming to them after the fact and asking them to fill out the form.

Skip

[0TreeLemur]

25 minutes ago, PT20J said:

Now you are getting into the somewhat complex and confusing area of what parts may be installed on a certificated airplane and who is permitted to install them and what logbook entries are required. Since you are going to have to have annual inspections done by an mechanic with an Inspection Authorization (IA) my suggestion is to develop a good working relationship with that person as soon as possible and discuss how to proceed with various repairs and improvements with the IA. That way, come annual time there won't be any explaining to do. For instance, an STC requires filing a form 337 with the FAA which must be signed by the IA, and most IAs take a dim view of someone coming to them after the fact and asking them to fill out the form.

Skip

Yessir.  I'm just planning.  I've never installed anything in my aircraft without the assistance of an A&P/IA, and would never ask one to approve something after the fact.  I am a P.E. with full understanding of professional licensing & ethics. 

When we first bought our C, I established a great  relationship with a local A&P/IA but he suddenly flew west.   After that, I established a great relationship with another one who was about 1 Mooney hour away but he retired in July and moved away.  Sadly, there is no A&P/IA on my field that seems to care much about mentoring.  I'm in the hunt. 

I rely on input from more experienced folks on MS  because at present I do not have anyone else to ask.

[1980Mooney]

3 hours ago, PT20J said:

Now you are getting into the somewhat complex and confusing area of what parts may be installed on a certificated airplane and who is permitted to install them and what logbook entries are required. Since you are going to have to have annual inspections done by an mechanic with an Inspection Authorization (IA) my suggestion is to develop a good working relationship with that person as soon as possible and discuss how to proceed with various repairs and improvements with the IA. That way, come annual time there won't be any explaining to do. For instance, an STC requires filing a form 337 with the FAA which must be signed by the IA, and most IAs take a dim view of someone coming to them after the fact and asking them to fill out the form.

Skip

I have an M20J Illustrated Parts Catalog dated January 1989.  It has an "Optional Equipment Group" and that is where the Rotating Beacon is listed (Section 110).  Later IPC's that are online (1998 and 2003) don't show an "optional equipment group".   Instead, the rotating beacon is with the Lights Group - Section 33 (33-40-04). 

It appears this light was an option and not required.  My 1980 M20J never came with a rotating beacon.  If it is a not required then it seems like a mechanic should be able to remove it and remove or "inop" the switch with a simple log book entry.  

[EricJ]

14 hours ago, 0TreeLemur said:

Oh.   That's disappointing.

Here's what led to my question:  My J has a rotating beacon on the belly.  It's kind of wimpy because it isn't very bright.  My C had a strobe.   I would think that a strobe visible miles away would be much better.

I was looking to answer the question- is the rotating beacon required equipment or can it be replaced with a strobe?

What model year is the J model?     By the time Js came out a rotating beacon was not required if it had strobes, and like others, my 77 J has no rotating beacon, only wingtip strobes.   I don't think you'd have a TC issue removing the beacon and putting strobes in since many came that way, unless there was some weirdo exception based on S/Ns.

[PT20J]

1 hour ago, EricJ said:

What model year is the J model?     By the time Js came out a rotating beacon was not required if it had strobes, and like others, my 77 J has no rotating beacon, only wingtip strobes.   I don't think you'd have a TC issue removing the beacon and putting strobes in since many came that way, unless there was some weirdo exception based on S/Ns.

Do you have a tail strobe?

My 1978 J had wingtip strobes but no tail strobe and it had a Grimes rotating beacon. 

My 1994 J has wingtip and tail strobes and no rotating beacon. 

[EricJ]

40 minutes ago, PT20J said:

Do you have a tail strobe?

My 1978 J had wingtip strobes but no tail strobe and it had a Grimes rotating beacon. 

My 1994 J has wingtip and tail strobes and no rotating beacon. 

No, just the wingtips.   There was a change in requirements by the FAA somewhere along the way, but the earlier "strobe-only" airplanes only needed two to meet the coverage requirements.

 

[0TreeLemur]

2 hours ago, EricJ said:

What model year is the J model?     By the time Js came out a rotating beacon was not required if it had strobes, and like others, my 77 J has no rotating beacon, only wingtip strobes.   I don't think you'd have a TC issue removing the beacon and putting strobes in since many came that way, unless there was some weirdo exception based on S/Ns.

It's an '83.   It has wingtip and tail strobes.   Maybe I just want to get an LED beacon for the belly to get away from the coffee grinder.  Those are expensive tho.   I bought a used Whelen HR, CFA strobe that I was thinking about having installed.