As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, MAIN HYDRAULIC PUMP PRESSURE LIGHT ILLUMINATED. NOTICED A SMELL AND SMOKE ENTERED THE COCKPIT AND CABIN. RETURNED AND LANDED WITHOUT INCIDENT. DETERMINED RT ENGINE TO BE OVERSERVICED. SERVICED TO PROPER LEVEL. OPERATIONAL CHECKS OF BOTH COOLING PACKAGES NORMAL. NO SMOKE NOTED.