A fault in a circuit board in the pitch trim servo of a Sikorsky S-92 helicopter could be a potential factor in the fatal crash of the aircraft into the sea off of Norway in February, investigators ...

Troubleshooting a circuit is easy, right? All you need is a couple of hands to hold the probes, another hand to twiddle the knobs, a pair of eyes to look at the schematic, another pair to look at the ...