What was found
CABIN ODOR. REPLACED THE AVIONICS EXTRACT FAN IAW AMM 21-26-51-400-0 01-A DUE TO SMOKEY ODOR AND REPLACED OUTLET BYPASS VALVE WHICH WAS INOPERATIVE IAW AMM 21-26-55. ACFT GROUNDED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CABIN ODOR. REPLACED THE AVIONICS EXTRACT FAN IAW AMM 21-26-51-400-0 01-A DUE TO SMOKEY ODOR AND REPLACED OUTLET BYPASS VALVE WHICH WAS INOPERATIVE IAW AMM 21-26-55. ACFT GROUNDED.