As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: STRONG RUBBER BURNING SMELL THROUGHOUT CABIN AND FLIGHT DECK. FOUND RIGHT HAND CABIN RECIRCULATION FAN BEARING BURNT UP. REMOVE AND REPLACED RIGHT HAND CABIN RECIRCULATION FAN (AALA202507295761) AND RECIRCULATION FILTER (AALA202507293610). PER AMM 21-25-01.