As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACCOMPLISH FIM 21-00 TASK 830. SMOKE OR FUMES IN CABIN SOURCE UNKNOWN - FAULT ISOLATION. REMOVED & REPLACED BOTH RECIRCULATION AIR FILTERS REF AMM 21-25-01/401. ACCOMPLISHED SMOKE OR FUMES FIM TASK 21-00 TASK 830 WITH ALL PNEMATIC SOURCES NO ODORS PRESENT. TOMC ADVISED. A/C OK TO CONTINUE.PARTS USED: 29-2124-3-0006, QTY :1