As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL SMELL IN COCKPIT, WORSE WITH EMERGENCY POWER SELECTED ON. FOUND SMELL TO BE WORSE IN FORWARD ACCESSORY COMPARTMENT. NO SIGNS OF OVERHEATED OR BURNING EQUIPMENT WITH POWER ON. DETERMINED ODOR TO BE RESIDUAL FROM RIGHT TRANSFORMER RECTIFIER THAT WAS REPLACED ON PREVIOUS FLIGHT.