As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: SOF EVENT AFTER L PACK STATUS MESSAGE. MAINTENANCE ACCOMPLISHED W/C 72L00021001 INITIAL TROUBLESHOOTING DUE TO SMOKE ODOR FUMES, REPLACED LH AIR CYCLE MACHINE IAW AMM AMM 21-52-02 (TEST PASSED) NO LEAKS NOTED.