Pilot/Owner Signoff for spark plug maintenance?

[John Clonts]

Can a pilot/owner legally remove a spark plug, clean it, replace it, and note in the logs that he has done so?

Same question for replacing a spark plug WIRE, in accordance with the Unison installation procedure...

Thanks!
John Clonts
Temple, Texas
N7NZ

[Newps]

John Clonts wrote:

> Can a pilot/owner legally remove a spark plug, clean it, replace it, and note in the logs that he has done so?

Yes.


>
> Same question for replacing a spark plug WIRE, in accordance with the Unison installation procedure...

Yes.


>

[Michelle P]

John,
Maybe,
Read 14 CFR 43 closely. It would seems to be a simple task however. If
much disassembly needs to be done to get to the plugs or wires. No. Do
you have the equipment specified by the manufacturer to clean the plugs?
IF not no. If you do or have access to it then probably.
Not much help huh? It is a very grey area.
Michelle

John Clonts wrote:

>Can a pilot/owner legally remove a spark plug, clean it, replace it, and note in the logs that he has done so?
>
>Same question for replacing a spark plug WIRE, in accordance with the Unison installation procedure...
>
>Thanks!
>John Clonts
>Temple, Texas
>N7NZ
>
>
>
>

--

Michelle P ATP-ASEL, CP-AMEL, and AMT-A&P

"Elisabeth" a Maule M-7-235B (no two are alike)

Volunteer Pilot, Angel Flight Mid-Atlantic

Volunteer Builder, Habitat for Humanity

[Bonza]

Michelle & John,
I have spare sets of spark plugs for my Bonanza. At annual I swap
them out. The used plugs are sent to Aircraft Sparkplug Rebuilders in
California for overhaul. They come back looking like new, sealed, and
yellow tagged.

The cost is either $3.00 or $3.50 each. They advertise in Trade a
Plane.

I dont think that I have ever felt a missfire ot pop using this
practice.

Bob