Broken fuel pump toggle switch
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- Mjwatlanta
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- First Name: Michael
- Aircraft Type: DA40NG
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Broken fuel pump toggle switch
The fuel pump toggle switch on my 2019 DA 40 NG broke. I have thought from the very beginning that it was a tiny little switch. It was not near robust enough to do it’s job - that fear has proven true as it has simply stopped working. It won’t move. Am I required to replace that switch with the same tiny little official Diamond part toggle or can I get something more robust and sturdy?
- Boatguy
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Re: Broken fuel pump toggle switch
I had to replace that switch in on my 2019 DA40NG. The DSC used the official part.
- Mjwatlanta
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Re: Broken fuel pump toggle switch
I wonder how many people have had similar problems. The very first time I used the switch, I thought it was unlikely to have a long life. I was proven right. It failed at less than 70 hours. Given that I've been flying a lot more corss-country trips that touch and goes, this failure was with very few operations considering it's only used on take offs and landings.
My A&P is looking for a matching part number made by another supplier. Fingers crossed.
Can't wait to hear about the 62!
My A&P is looking for a matching part number made by another supplier. Fingers crossed.
Can't wait to hear about the 62!
- Mjwatlanta
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- Boatguy
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Re: Broken fuel pump toggle switch
A little over a year ago I paid $36 for the factory part + $203 to install + $34 for the log book entry = $304 with taxMjwatlanta wrote: ↑Wed Feb 08, 2023 7:18 pm $365.70 total for labor. I bought the part online for $2.57.
- Mjwatlanta
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Re: Broken fuel pump toggle switch
The replacement part is a little more robust looking. It’s knurled. And it actually works. I can now hear the pump. Before replacing the old part, it was moving but apparently not actually turning the pump on. Oops.
- Boatguy
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Re: Broken fuel pump toggle switch
That was my tip off that the switch I had failed. I no longer heard the pump.Mjwatlanta wrote: ↑Sat Feb 11, 2023 10:59 pm The replacement part is a little more robust looking. It’s knurled. And it actually works. I can now hear the pump. Before replacing the old part, it was moving but apparently not actually turning the pump on. Oops.
What I've never understood is that there are two pumps, and the switch just turns on the second pump, in series with the first, as a backup. Why is that I don't hear the first pump, but I do hear the second pump?
- Mjwatlanta
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Re: Broken fuel pump toggle switch
I don’t recall hearing the pump on the 180, so when I got the NG I didn’t know I was missing anything. The NG is so much quieter - but I didn’t know I should have heard the pump. Now that I know I should, and can, hear the pump the sound will be a good reminder during takeoff and landing.