For my own safety and also for that of my cockpitapparatuur I have the metal cockpitframe and the metal cockpitvloer with grounding.

Between the spaghetti of cables I sleeve a ground wire bolted to the cockpitvloer and the cockpitframe. The other side of the grounding wire is connected to the ground conductor of an electrical outlet.

An intervention that does not cost any money and still can be useful.

You never know ....

Photos : http://www.flightdeck737.be/pc/pc-setup/