As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING PLASTIC SMELL IN COCKPIT METHOD: NOTES: AFTER STARTUP, THE SMELL OF BURNING PLASTIC FILLED THE COCKPIT. REMOVED AND REPLACED THE MAIN BATTERY CONNECTOR AND LEADS IAW LEO MM 24-31-01. GROUND LUG ON CONNECTOR BURNED. SUSPECT INCORRECT ASSEMBLY FROM OEM.