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-   -   I don't know my own strength! (https://vansairforce.net/community/showthread.php?t=106388)

N941WR 11-09-2013 11:54 AM

I don't know my own strength!
 
This morning my son and I were going to fly to Charlotte to visit some friends but apparently the exercise I've been doing is working because when I went to turn on the fuel pump the toggle broke off. Needless to say, our flight was canceled.

The Tyco Electronics W31-X2M1G-5 breaker / switch is $24.85 from Aircraft Spruce. Ouch! However, I did order a spare.


This part has maybe 350 to 400 hours on it and is the third one I've installed. The first two wouldn't stay on after the plane sat out in the sun on a hot day.

gasman 11-09-2013 12:01 PM

Good to know. Too expensive, too heavy and too prone to failure for what it has to do.

flyinga 11-09-2013 01:40 PM

Did this switch have the standard round lever or a Paddle type lever?

N941WR 11-09-2013 02:26 PM

Quote:

Originally Posted by flyinga (Post 824536)
Did this switch have the standard round lever or a Paddle type lever?

Standard round lever. This was my fuel pump switch.

Walt 11-09-2013 02:37 PM

Those Tyco switch/breakers are junk, I would never have one in my airplane.

RVDan 11-09-2013 02:55 PM

There is actually an AD on a version of this device used as a switch in Bonanzas. They were catching on fire. Since they were identified with a Beech p/n the AD didn't reach past the Bonanza.


Echo what was said- they are not suitable for aircraft.

N941WR 11-09-2013 03:50 PM

OK guys, what do you replace them with and will the replacements drop right in or will I have to make a new buss bar?

I can't imagine that a new one doesn't meet the FAA standards. Mine are now six years old +/-. One year in my shop and five in the plane.

Here is an FAA SAIB on the subject. What I don't know is if the replacement breakers of the new or old design.

Greg Arehart 11-09-2013 05:44 PM

I used a lighted (green) rocker switch for my aux fuel pump. Easy to notice if I accidentally leave it on.

rjtjrt 11-09-2013 07:54 PM

Bill
I would like to be able to find this thread easily later.
If you agree, can you or a mod change the title of the thread to something with a referrence to the circuit breaker toggle switch or some such?

John

N941WR 11-09-2013 07:58 PM

Quote:

Originally Posted by Greg Arehart (Post 824601)
I used a lighted (green) rocker switch for my aux fuel pump. Easy to notice if I accidentally leave it on.

When I designed my panel, I wanted to use aircraft parts, thus this switch is my breaker. And I had a green LED at the top of the panel when this was on, for the same reason you used your rocker switch.

My entire panel has either breaker-switches or pullable breakers.


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