As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE FUEL FLOW DROPPED FROM 25 GALLONS AN HOUR AT TOP OF CLIMB TO 7 GALLONS AN HOUR AT ALL POWER SETTINGS. ELECTRIC FUEL PUMP SWITCH ALSO FAILED. PILOT USED ENGINE PRIMER BUTTON TO KEEP ENGINE RUNNING. USE OF PRIMER BUTTON INCREASED FUEL FLOW TO 25 GALLONS AN HOUR. ALL OTHER ENGINE ENGINE INDICATIONS WERE NORMAL.