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Authority to solder splice a wire

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Tundra10

Joined: 14 Jun 2010
Posts: 102
Location: Scarborough, Ontario

Posted: Tue May 08, 2018 7:56 am Post subject: Authority to solder splice a wire

AeroElectic Wizards:



I replaced the coiled wired that connects the push to talk switch on  

the yoke of my Cessna 172.

This meant splicing the coiled wire with the regular wire that runs  

behind the instrument panel to the intercom.



I twisted and soldered the wires and covered them with heat shrink.



The log book entry needs to read something like:

Push to talk wiring replaced, using AC4313-1B section X-XX as a guide.



I cannot find any section that discussed splicing wires in this manner !



Does someone have a reference within an authoritative document that I  

can cite indicating this is an acceptable method of repair ?



Thanks !



Jeff Page

Dream Aircraft Tundra #10

nuckolls.bob(at)aeroelect
Guest

Posted: Tue May 08, 2018 12:58 pm Post subject: Authority to solder splice a wire

At 10:55 AM 5/8/2018, you wrote:

  	  Quote: 	
		  --> AeroElectric-List message posted by: Jeff Page <jpx(at)qenesis.com>



 AeroElectic Wizards:



 I replaced the coiled wired that connects the push to talk switch on  

 the yoke of my Cessna 172.

 This meant splicing the coiled wire with the regular wire that runs  

 behind the instrument panel to the intercom.



 I twisted and soldered the wires and covered them with heat shrink.



 The log book entry needs to read something like:

 Push to talk wiring replaced, using AC4313-1B section X-XX as a guide. 	


   There are many maintenance and/or repair activities that

   don't necessarily need to be logged. The actions you described

   have no safety implications. If carried out with good craftsmanship,

   I wouldn't bother to record it.



 

 

   Bob . . .

Tundra10

Joined: 14 Jun 2010
Posts: 102
Location: Scarborough, Ontario

Posted: Tue May 08, 2018 11:02 pm Post subject: Authority to solder splice a wire

Bob,



In Canada, most shops log pretty much everything, and the shop signing  

off the annual plans to include the intercom wiring repair in the list  

of things accomplished.  I am happy they let me do the work and just  

inspect it, since that saves me a lot of $$$.



As much as anything, I am surprised that there is no mention of  

splicing a wire with solder and shrink wrap in AC4313-1B.  It is  

commonly done, so it must be blessed by the government somewhere ?



Thanks,



Jeff



 	  Quote: 	
		   Time: 01:58:27 PM PST US

 From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com>

 Subject: Re: Authority to solder splice a wire



 At 10:55 AM 5/8/2018, you wrote:

>

> AeroElectic Wizards:

>

> I replaced the coiled wired that connects the push to talk switch on

> the yoke of my Cessna 172.

> This meant splicing the coiled wire with the regular wire that runs

> behind the instrument panel to the intercom.

>

> I twisted and soldered the wires and covered them with heat shrink.

>

> The log book entry needs to read something like:

> Push to talk wiring replaced, using AC4313-1B section X-XX as a guide.



    There are many maintenance and/or repair activities that

    don't necessarily need to be logged. The actions you described

    have no safety implications. If carried out with good craftsmanship,

    I wouldn't bother to record it.

    Bob . . .

nuckolls.bob(at)aeroelect
Guest

Posted: Wed May 09, 2018 8:05 am Post subject: Authority to solder splice a wire

At 02:00 AM 5/9/2018, you wrote:

  	  Quote: 	
		  --> AeroElectric-List message posted by: Jeff Page <jpx(at)qenesis.com>



 Bob,



 In Canada, most shops log pretty much everything, and the shop signing  

 off the annual plans to include the intercom wiring repair in the list  

 of things accomplished.  I am happy they let me do the work and just  

 inspect it, since that saves me a lot of $$$.



 As much as anything, I am surprised that there is no mention of  

 splicing a wire with solder and shrink wrap in AC4313-1B.  It is  

 commonly done, so it must be blessed by the government somewhere ? 	


   They haven't gotten around to that yet . . . but

   probably will. When not specifically covered in AC43-13

   it may suffice to say, "Spliced and insulated wires per

   shop practice." 



 

 

   Bob . . .

alec(at)alecmyers.com
Guest

Posted: Wed May 09, 2018 8:05 am Post subject: Authority to solder splice a wire

Jeff

Refer to paragraph 19.4 of NASA technical standard NASA-STD 8739.4A, “WORKMANSHIP STANDARD FOR CRIMPING, INTERCONNECTING CABLES, HARNESSES, AND WIRING”

That should be acceptable to the Minister.

On May 9, 2018, at 03:00, Jeff Page <jpx(at)qenesis.com> wrote:

Bob,

In Canada, most shops log pretty much everything, and the shop signing off the annual plans to include the intercom wiring repair in the list of things accomplished.  I am happy they let me do the work and just inspect it, since that saves me a lot of $$$.

As much as anything, I am surprised that there is no mention of splicing a wire with solder and shrink wrap in AC4313-1B.  It is commonly done, so it must be blessed by the government somewhere ?

Thanks,

Jeff

 	  Quote: 	
		   Time: 01:58:27 PM PST US

 From: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com>

 Subject: Re: Authority to solder splice a wire

 At 10:55 AM 5/8/2018, you wrote:

> 

> AeroElectic Wizards:

> 

> I replaced the coiled wired that connects the push to talk switch on

> the yoke of my Cessna 172.

> This meant splicing the coiled wire with the regular wire that runs

> behind the instrument panel to the intercom.

> 

> I twisted and soldered the wires and covered them with heat shrink.

> 

> The log book entry needs to read something like:

> Push to talk wiring replaced, using AC4313-1B section X-XX as a guide.

   There are many maintenance and/or repair activities that

   don't necessarily need to be logged. The actions you described

   have no safety implications. If carried out with good craftsmanship,

   I wouldn't bother to record it.

   Bob . . .

Tundra10

Joined: 14 Jun 2010
Posts: 102
Location: Scarborough, Ontario

Posted: Wed May 09, 2018 10:57 pm Post subject: Authority to solder splice a wire

Thanks Alec.  I knew it had to be documented as acceptable somewhere !



Jeff



DO NOT ARCHIVE



 	  Quote: 	
		   Time: 09:05:39 AM PST US

 From: Alec Myers <alec(at)alecmyers.com>

 Subject: Re: Re: Authority to solder splice a wire

 Jeff



 Refer to paragraph 19.4 of NASA technical standard NASA-STD 8739.4A,  

 WORKMANSHIP

 STANDARD FOR CRIMPING, INTERCONNECTING CABLES, HARNESSES, AND WIRING



 That should be acceptable to the Minister.

rampil

Joined: 04 May 2007
Posts: 870

Posted: Fri May 11, 2018 12:22 pm Post subject: Re: Authority to solder splice a wire

I don't think shrink wrap was invented when AC43.13 was written

_________________
Ira N224XS

trigo(at)mail.telepac.pt
Guest

Posted: Sat May 12, 2018 12:37 am Post subject: Authority to solder splice a wire

Ira 



I agree with you, I think shrink wrap was invented only after AC43.13 was published ... 



Carlos



Enviado do meu iPhone



No dia 11/05/2018, às 21:22, rampil <ira.rampil(at)gmail.com> escreveu:



 	  Quote: 	
		   

 

 I don't think shrink wrap was invented when AC43.13 was written 

 

 --------

 Ira N224XS

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=480080#480080

Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Sat May 12, 2018 5:34 am Post subject: Authority to solder splice a wire

You might be correct about the original version of AC 43-13-1.

However, the current version AC 43-13-1B was published Sept 1998, with 

change 1 issued Sept 2001. Most of the editing was done a few years 

earlier. I can recall using heat shrink tubing in the early 80's and 

probably before that. AC 43-13-2B (alterations) was issued even more 

recently. Those dates straight from the cover of my desk reference copy.

Kelly

On 5/12/2018 1:34 AM, Carlos Trigo wrote:

 	  Quote: 	

 Ira

 I agree with you, I think shrink wrap was invented only after AC43.13 was published ...

 Carlos

 Enviado do meu iPhone

 No dia 11/05/2018, às 21:22, rampil <ira.rampil(at)gmail.com> escreveu:

> 

>

> I don't think shrink wrap was invented when AC43.13 was written 

>

> --------

> Ira N224XS

_________________
Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

rampil

Joined: 04 May 2007
Posts: 870

Posted: Sat May 12, 2018 5:45 am Post subject: Re: Authority to solder splice a wire

------>  Kelly  <-----

I was tongue in cheek.

Yes, the old dinosaur has been revised from time to time, 

even as recently as almost 20 years ago.  In spirit, though

it is still an antique.  How many decades do you suppose it 

will be before it covers fiber-optics, mechatronics, point-of sensing

transducers, etc?



I suppose it fits the crowd. Most of the guys I restore antique/classic

aircraft with still prefer cartridge fuses rather than switchable 

circuit breakers.

_________________
Ira N224XS

art(at)zemon.name
Guest

Posted: Sat May 12, 2018 5:56 am Post subject: Authority to solder splice a wire

OK... I had to go look it up. Heat-shrink tubing was invented by Raychem Corporation in 1962. See https://en.wikipedia.org/wiki/Heat-shrink_tubing

Cheers,

    -- Art Z.

-- 

https://CheerfulCurmudgeon.com/"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel

echristley(at)att.net
Guest

Posted: Sat May 12, 2018 8:22 am Post subject: Authority to solder splice a wire

Just out of curiosity, is there a way to get a diff of what changed in the current version of AC43-13?

We always here that its a document written in the blood of others mistakes.  It would be telling to know what new "mistakes" were incorporated, as well as knowing what new materials and techniques the FAA considers acceptable.

 

    On Saturday, May 12, 2018 9:57 AM, Art Zemon <art(at)zemon.name> wrote:



  



 OK... I had to go look it up. Heat-shrink tubing was invented by Raychem Corporation in 1962. See https://en.wikipedia.org/wiki/Heat-shrink_tubing

Cheers,

    -- Art Z.

-- 

https://CheerfulCurmudgeon.com/"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel

Eric Page

Joined: 15 Feb 2017
Posts: 247

Posted: Sat May 12, 2018 9:06 am Post subject: Re: Authority to solder splice a wire

 	  echristley(at)att.net wrote: 	
		  Just out of curiosity, is there a way to get a diff of what changed in the current version of AC43-13? 	


Look for a black vertical bar in the left margin.  It indicates that the text beside it has been changed from the last revision.  This obviously doesn’t provide a comparison with the superseded text, but if you have the old version as well, it shows where to compare.



Eric

nuckolls.bob(at)aeroelect
Guest

Posted: Sun May 13, 2018 5:17 am Post subject: Authority to solder splice a wire

At 11:20 AM 5/12/2018, you wrote:

  	  Quote: 	
		  Just out of curiosity, is there a way to get a diff of what changed in the current version of AC43-13?



 We always here that its a document written in the blood of others mistakes.  It would be telling to know what new "mistakes" were incorporated, as well as knowing what new materials and techniques the FAA considers acceptable.



 	


   That was an interesting revision process . . . AC43-13 had

   not been substantially revised in decades. When keepers

   of the flame were about to release the latest upgrade, they

   sent a copy to the technical services guru at EAA . . . his

   name escapes me at the moment . . . and asked if EAA members

   could review the document and offer advice on "typos and 

   syntax, etc. By the way, we need your input in about a week."



   I received a copy of chapter 11. Other chapters were sent

   to various subject matter experts in EAA.  I think I spent

   4-5 late night sessions on the keyboard and managed to get

   my contributions, about a dozen pages of comments, in under

   the wire. I've got a copy of the EAA submission around here

   somewhere . . . I'll have to dig a bit.



   In any case, the total suggestion package was substantial. The

   target for releasing the revision was pushed back several

   months . . . almost a year I think. When it finally did get

   released, most of what EAA submitted was incorporated into

   the document . . . but a few new toe-stubbers were added as

   well (sigh) . . .  nevertheless, it was a gratifying experience.



 

 

   Bob . . .

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