As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED BOOST PUMP INOPERATIVE IN-FLIGHT. FOUND PRINTED CIRCUIT BOARD AND CONNECTOR MELTED AT ONE CORNER. REPLACED CONNECTOR AND PCB. SUBMITTER RECOMMENDS AMENDING STARTING PROCEDURE TO TURN BOOST PUMP SWITCH OF JUST PRIOR TO STARTING ENGINES. SUSPECT HIGH CURRENT DRAW OVER THE BOARD ON START SEQUENCE WITH LOWERED VOLTAGE AVAILABLE OVERHEATS THE PCB.