As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT, AFTER RETRACTING GEAR, CREW OBSERVED DECREASING HYD SYS PRESS & SYS INDICATOR LIGHTS. CREW FOLLOWED QRH PROCEDURES, DECLARED EMERGENCY & LANDED SAFELY. UPON LANDING IT WAS DISCOVERED THAT THE LT MLG RETRACT ACTUATOR WAS LEAKING. REPLACED THE ACTUATOR.