As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOG - ON DEPARTURE, EXPERIENCED LOSS OF HYDRAULIC PRESSURE AND QUANTITY. PROCEEDED TO BAQ AND LANDED WITHOUT INCIDENT. INSPECTION REVEALED THE LEFT MAIN LANDING GEAR BOGIE SWIVEL UNLOCK CYLINDER RELIEF VALVE WAS BROKEN. REPLACED RELIEF VALVE AND RETURNED AIRCRAFT TO SERVICE. PART TC: 22,693. (X)