As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRIC FUEL PUMP FAILED AND CAUSED SMOKE AND BURNING SMELL IN AIRCRAFT. FUEL PUMP IS LOCATED BELOW CO-PILOT FEET FLOOR PANELS. PUMP HAD 27.2 TOTAL AIRFRAME HOURS OF OPERATION SINCE O/H. CURRENT FLIGHT WAS PATTERN WORK, WHERE PUMP WAS LEFT ON FOR ABOUT 30 MINUTES. THIS PUMP WAS RECENTLY OVERHAULED.