As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JUST AFTER TAKEOFF STRONG ODOR IN COCKPIT AND THEN CALLS FROM CABIN INDICATED ODOR AND SMOKE DEVELOPING. AIRCRAFT RETURNED AND LANDED WITHOUT INCIDENT. DISCOVERED APU HYDRAULIC FLUID INGESTION. REMOVED AND REPLACED APU. REPLACED WATER SEPARATOR SOCKS. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)