As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 0072 FLL/GGT: REPORT: BURNING SMELL IN COCKPIT & CABIN. AND VERY WEAK AIRFLOW. CORRECTIVE ACTION: PERFORMED BOTH ENGINE RUN REF AMM 72-00-00. INSPECTED AVIONICS FAN & RACK REF 34-10-00. CHECK FUNCTION OF REC FAN REF 21-40-00. NO DEF NOTED.