As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE GROUND RUNS, FUEL PRESSURE LIGHT ILLUMINATED AND WOULD NOT EXTINGUISH. FOUND #2 FUEL PRESSURE SWITCH IN FUEL TANK DEFECTIVE. THIS WAS FOUND AFTER INSTALLING A VECTOR /ROBINSON CRASH RESISTANT FUEL TANK IN THE AIRCRAFT.