Ignition switch

R

Racerx

Final Approach
PoA Supporter
Joined
May 15, 2020
Messages
7,764
Display Name
Ernie
Home Airfield
C81
Plane is in for annual. While a/p was checking timing he found I have a problem with my ignition switch. A new Bendix ignition switch is stupid expensive. I plan on installing a surefly as soon as the sim6l is available. With that I was thinking of installing the electroair switch panel. Anyone have it?
 
AV8R_87 said:
Not what you asked for, but have you looked at the ACS ignition switch? Rebuild kits are available for them.
Click to expand...
I did. Been going back and forth. My thinking is you're more likely to be stranded if the rotary switch fails.

Was looking into the ACS route however I'm not sure if the switch I need is approved.
 
Last edited:
I have wondered about this. Citabrias use a couple of toggle switches for the mags. Can an A&P replace the Bendix keyswitch with toggles as a minor alteration? Given the existence of the electroair panels, I'm guessing the answer is no.
 
GeorgeC said:
Can an A&P replace the Bendix keyswitch with toggles as a minor alteration?
Click to expand...
I'd say yes. The only installation trap is ensuring that the new start switch grounds the non-impulse mag when cranking.
 
Last edited:
Installed the Electroair switch during a panel upgrade together with the Surefly last year. Very pleased with the result. Here is only one caveat: you need to be focused during shut-down that you switch off both magnetos.
As a result of my upgrade I have an AD-free surplus ACS / Teledyne switch p/n 10-35720-1 in the hangar. PM if you want a temporary solution.

If you want to add an additional layer of theft protection consider to install this gadget

Intellikey NG

www.startyourplane.com www.startyourplane.com
 
AD 76 07 12 pertaining to Bendix Switches is of overlooked or mis-identified.

It can be accomplished and LOGGED by PPL or higher.

It would be good knowing the type of aircraft involved here.

The ACS is approved for just about all Cessnas.

I have installed them in Pipers as well.

Note that key blanks are difficult to obtain and ACS is reluctant to provide

replacements even if one is defective. You may want to buy extras at

initial purchase.

Many mfg have used toggle switches for various models.

A concern here is a guard to prevent accidental activation.
 
aggiepack said:
Installed the Electroair switch during a panel upgrade together with the Surefly last year. Very pleased with the result. Here is only one caveat: you need to be focused during shut-down that you switch off both magnetos.
As a result of my upgrade I have an AD-free surplus ACS / Teledyne switch p/n 10-35720-1 in the hangar. PM if you want a temporary solution.

If you want to add an additional layer of theft protection consider to install this gadget

Intellikey NG

www.startyourplane.com www.startyourplane.com
Click to expand...
Which model electro air switch did you install?
 
Racerx said:
Plane is in for annual. While a/p was checking timing he found I have a problem with my ignition switch. A new Bendix ignition switch is stupid expensive. I plan on installing a surefly as soon as the sim6l is available. With that I was thinking of installing the electroair switch panel. Anyone have it?
Click to expand...
and you can’t accept a used ignition switch or a new ACS switch from spruce. It is FAA/PMA.
 
Last edited:
Clip4 said:
and you can’t accept a used ignition switch or a new ACS switch from spruce. It is FAA/PMA.
Click to expand...
Currently have push button start so the switch is off-r-l-both. The ACS a-510-5 is not faa/pma which would require a 337 to keep that set up. Certainly not the end of the world. But I've never liked going past the right mag to get to the impulse mag while cranking and being a rtfm guy, it says to begin cranking before switching to left mag.

But as above it's 100 bucks more to get the EA and its not subject to the ad.
 
Bell206 said:
Why would it be a major alteration? What is installed now?
Click to expand...
According to Spruces site the ACS a-510-5 is for "Experimental aircraft only or 337 Form required for Production aircraft."

Assuming the original bendix is installed I have Bendix 10-51104-4A. The modern day Bendix equivalent would be 10-357290-1, only 670 bucks.
 
Racerx said:
Great, I fly a piper. And that doc mentions a510 revision r. I'm assuming that is a510-2.

I don't believe a510-5 has the pma approval
Click to expand...
It’s not difficult to get a field approval for a FAA-PMA switch.
 
Racerx said:
According to Spruces site the ACS a-510-5 is for "Experimental aircraft only or 337 Form required for Production aircraft."
Click to expand...
Except a vendor does not have that authority concerning the installation, only the installer does under Part 43. That said, when a vendor does sell a part to the public that could possibly be installed on a type certificated aircraft it must have a Part 21 approval. So what most vendors do is mark it "experimental", put a "product code" on it, or simply state it needs a 337 to relieve themselves of any Part 3 violation. Bottomline, its your mechanic who makes the decision on any part install.

Clip4 said:
It’s not difficult to get a field approval for a FAA-PMA switch.
Click to expand...
FYI: A PMA part does not need further approval for installation as that is the whole intent of the PMA to make the part an approved replacement part.
 
You must log in or register to reply here.
Back
Top