As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THERE WAS A SLIGHT ELETRICAL OR PAPER BURING ODOR IN CABIN AND COCKP IT. NOTICED FAN AMBER ON REMOVED AND REPLACED LEFT CABIN RECIRCULATION FAN IAW AMM 21-21-51. REPLACED RECIRCULATION FILTER IAW AMM 21-21-41. OPERATIONAL CHECKED GOOD IAW AMM 21-21-00-710-001-A.