VP
Yes it's the copilot side that will extinguish the lights. The mechs were saying something about u-joints but I'm not quite sure where these are located. I'm going to pass your info on to them and hopefully we can minimize the down time.
I spoke with a former factory instructor and he said it's a common problem with the 2B. Our bird has approx 3300 hrs on it and it's used quite often for auto training. Idle time on the ground probably results in the use of both the switch and twist grip depending on the pilot at the time. We have had the aircraft since 02 and were initially told not to use the switch for idle. This instructor was factory trained. Recently we were advised to continue to use the twist grip because we are picking up a 2b1 soon and the twist grip is used on that aircraft. I agree that using the switch results in less moving parts and less likely to cause problems. No doubt are training got the best of it.
We plan on taking care of it in a few weeks, I'll get back with you on the outcome.
Thanks again