For what it's worth, I had Dual ElectroAir systems back when Jeff Rose owned the company (1st RV-6A). The main modules never failed, but the Mag Slot sensor failed often. Jeff later redesigned that housing for a 1/2" sensor (instead of the 1/4" sensor) and I still had failures. I ALWAYS carried a spare sensor in the aircraft. The issue appeared to be quality control in the sensor manufacturing process.
I'm now running two PMAGs in my RV-7A......
This was well known in the industry 20 years ago. Electromotive never really fixed the problem with frequent crank sensor failures. Does anyone know if Electroair is using something different now?
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