As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: RECIRCULATION FAN STATUS LIGHT ILLUMINATED WITH ASSOCIATED FAINT BURNING SMELL AT DOOR 3R; TURNED OFF RECIRCULATION FANS AND SMELL DISSIPATED. REPLACED AFT UPPER RECIRCULATION FAN WITH SERVICEABLE UNIT IAW AMM 21-25-01, OPS CHECK GOOD.