As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELECTRICAL BURNING ODOR FROM BEHIND OR UNDER COPILOTS SEAT. POWERED UP AC SYS USING THE APU AND BOTH ENGS, SELECTED FULL HOT ON TEMP SELECTOR, RADIO MASTER ON, ENG ALTERNATOR'S ON WINDSCREEN HEAT ON AND COCKPIT AND CABIN LIGHTS ON OPERATED ALL SYS FOR 1 HR WITH NO UNUSUAL ODORS DETECTED. NO DISCREPANCY WAS NOTED IAW MM, CH 24-10-00 AND 71-00-00.