My 2520 is a few years old now so there are a couple of items that need attention. Most importantly is the power steering for the aft station. It was working fine one day then the next time out it quit. When I first tried to turn the wheel I experienced intermittent resistance, then complete failure. The wheel turns freely, but does not turn the motor. I'm hoping for advice on what to check for. A more minor issue is the switch panel. One of the power-on, indicator lights, behind the rocker switch is out. Do I have to remove the whole switch panel to get at that bulb? Advice will be very much appreciated.