As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BHM - ON MAINTENANCE FERRY FLIGHT, AFTER TAKEOFF, CREW NOTED RANCID BURNING SMELL. CREW DECLARED AND EMERGENCY AND THE FLIGHT RETURNED TO BHM. FLIGHT LANDED WITH NO FURTHER INCIDENT. MAINTENANCE FOUND THAT A BIRD HAD BEEN INJESTED CAUSING THE SMELL. ALL APPROPRIATE INSPECTIONS WERE COMPLETED AND THE WATER SEPARATOR BAG CHANGED. (M)