What was found
MOMENTARY MOIST TYPE SMELL ON CLIMB OUT. DISSIPATED QUICKLY. MOMENTARY SULPHUR TYPE SMELL ON INITIAL THRUST REDUCTION FOR DESCENT. DISSIPATED QUICKLY. NO SMELLS AFTER LANDING. PERFORMED TROUBLESHOOTING OF SMELL OF SMOKE OR FUMES IN THE COCKPIT/CABIN IAW AMDS WORKCARD 0550-2001. NTF, REMOVED AND REPLACED RECIRCULATION FILTER (L&R) IAW A220 AMM 21-22. C/W NO-GO ODI PREVENTION. MCC NOTIFIED. A/C OK FOR SVC. (LP# 6481637)