As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT TURNED BACK DUE TO AN UNIDENTIFIABLE ODOR IN THE COCKPIT AND A SMOKE SMELL IN CABIN DURING CLIMB. DECLARED EMERGENCY BY ATC. MAINTENANCE FOUND EVIDENCE OF A BIRD STRIKE IN THE NUMBER 1 ENGINE. ENGINE WAS BORESCOPED AND NO RESTRICTIVE ITEMS FOUND. RAN BOTH ENGINES TO TAKEOFF POWER, ONE AT A TIME, TO ISOLATE SMELL. RAN PACKS HOT, WITH NO ODOR FROM EITHER SIDE. AIRCRAFT OKAY FOR SERVICE.