As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN CRUISE, FUEL PRESSURE FLUCTUATIONS AND FUEL QUANTITY FLUCTUATIONS. PUMP NOT RUNNING AND SPARKING AT REMOTE FUEL DRAIN SPRING. GROUND WIRE FOR BOOST PUMP AND FUEL QUANTITY TRANSMITTER WAS HOOKED UP CORRECTLY, BUT IN FACT GROUNDING THROUGH THE MANUAL SUMP DRAIN CABLE. POSSIBLE FIRE HAZARD. GROUND WIRE RELOCATED TO THE AIRFRAME.