We had a rather significant P-static event yesterday as we flew through an area of very fine rain/mist.  OAT was 9 deg C at 6000 MSL.  I first noticed the bacon sizzling sound in the headsets, then noticed the Advanced Flight Systems AOA Pro display going crazy followed by the TruTrak DFC-250 failing and putting the airplane in a shallow descent (display indicated some sort of failure, I don't recall the actual message).  The Dynon D-10 went out as well.  The event lasted about 5 seconds as the sizzling sound increased till the discharge.  The AOA, autopilot and Dynon all came back and operated properly.  I had deenergized the autopilot during the event.  Since then , I have noticed the only thing not working as before is two of the MAC trim led indicators.  The trims work fine.  The radios were not affected.  MX-20, GNS 480, SL-30, GTX 33.  (all certified hardware)  All the non-certified items could not handle the event.

Last week, I waxed the airplane for the first time since paint over a year ago.  I used Macguires polish then carnuba wax on the wings only.  Haven't had time to complete the entire airframe yet.  When using the polish, I noticed the hair on my arms would stand on end due to the static buildup.  When I applied the carnuba wax, this did not happen.

I was wondering if anyone thinks the polish/wax could have an effect on P-static.  The airframe is E-glass without static wicks.  I have flown through rain of this type before with no effect noticeable.

Mike Salzman
LNCE
Fairfield, CA