As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PWM - FLT 4204 - AFTER TAKEOFF WHEN GEAR WAS SELECTED UP, THE HYDRAULIC QUANTITY STARTED TO DROP. CREW SELECTED GEAR AND FLAPS DOWN AND RETURNED TO THE AIRPORT. LANDING WAS ACCOMPLISHED WITHOUT INCIDENT. MAINTENANCE FOUND HYDRAULIC LINE GOING TO NOSE GEAR RETRACT ACTUATOR LEAKING. LINE WAS REPLACED AND SYSTEM CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (X)