If you are replacing an instrument panel here are some points to ponder. With a one-piece left side instrument panel installed, access behind the panel is very limited. The opportunity is at hand and not much extra labor to accomplish during panel installation, to replace those items mentioned below. After the panel is installed, if you have a problem with a component then it’s a worse problem.
- Replace the landing gear selector switch on those airframes where that switch is installed in the panel, not below the panel.
- Replace the landing gear solenoid on those airframes where it is mounted to the aft side of the firewall.
- Replace the landing gear and stall warning indicator lights with real Mil-Spec press-to-test indicators.
- You might as well replace the 5-amp and 30-amp circuit breakers for the landing gear system as long as you’re spending money; they’re cheap and good insurance too. Semi-simple to install on the singles; a little more difficult on the twins with the CB panel in the floor.
As you would expect, I sell some of those components. The landing gear selector switch purchase comes with a dandy color-coded diagram showing wire placement on the switch. No fumbling around with a wiring diagram and a helper telling you what wire mark goes onto which location.