As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT FUEL SHUT-OFF VALVE ELECTRICAL CONNECTOR IS COMING IN CONTACT WITH ACCESS PANEL NUTPLATE ON RT NACELLE (PANEL NR 5RH). THE CLOSE PROXIMITY OF THE FIREWALL ELECTRICAL CONNECTOR AND THE ACCESS PANEL NUTPLATE CAUSED WIRING TO BECOME CHAFED. NUTPLATE PROTRUDES INTO ELECTRICAL CONNECTOR AND BACKSHELL CAUSING INTERMITTENT SHORTING IN TURN CAUSING RT FIREWALL SHUT-OFF VALVE CAUTION LIGHT TO FLICKER IN-FLIGHT.