As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4456, SHORTLY AFTER TAKEOFF NOTICED THE HYD LIGHT ILLUMINATED AFTER THE LANDING GEAR RETRACTED. ALSO NOTICED A UNSAFE INDICATION IN THE GEAR HANDLE AND THE HYD PRESSURE AND QTY GAUGE LOW. BLEW THE GEAR, THEN PERFORMED SAFE CHECKS BEFORE LANDING.