As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: A WAXY PLASTIC LIKE BURNING SMELL WAS NOTICED THROUGHOUT THE AIRPLANE DURING DESCENT, AROUND 3000 FT. THE ODOR WAS DETECTED BOTH IN THE FLIGHT DECK AND IN THE CABIN. ACCOMPLISHED SOF T/S J/C 08L00021001. FOUND LEFT RECIRCULATION FAN INOPERATIVE. REMOVED AND REPLACED RECIRCULATION FAN. ACCOMPLISHED ENGINE HIGH POWER RUN UP, CHECKS GOOD NO ODOR.