Look through the appropriate wiring diagram for you RV-12 (See: http://www.vansaircraft.com/public/downloads.htm
) and trace where the landing lights/strobe wires are positioned near the RPM sense wire. Look for chafing or electronic interaction.
David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 (circa 1965) - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B) - N124DH flying since March 2014 - 740+ hours (as of Mar 2019)!
through June 2019.
Last edited by DHeal : 09-30-2018 at 06:41 PM.