As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAME ODOR DETECTED AS LOG PAGE DISCREPANCY 500901 (BURNING PLASTIC ODOR). ODOR WAS NOT AS STRONG AND DID NOT LAST AS LONG (APPROX 1 MINUTE) BUT WAS STILL DETETECTED. REPLACED THE RECIRCULATION FILTER IAW AMM TASK 21-22-22-000-801 AND 21-22-222-400-801 AND C/W SUBTASK 21-22-16-710-001 FOR OPS CHECK OF THE FAN, OPS CHECK GOOD. RETURNED TO SERVICE.