As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT, AC EXPERIENCED A HYD PRESSURE WARNING LIGHT ON THE RT ENGINE HYD PUMP, THEN THE LT ENGINE DRIVEN HYD PUMP. THE LANDING GEAR WAS EXTENDED WITH THE EMERGENCY BLOW DOWN SYSTEM. THE AC LANDED WITH NO OTHER ISSUES. THE AC WAS TOWED FROM THE RUNWAY TO THE HANGER. THE FAILURE WAS A HYD LANDING FEAR RETRACT LINE IN THE LT WING ROOT DEVELOPED A CRACK, AND ALL THE HYD FLUID UNDER PRESSURE, DRAINED THE HYD SYSTEM FLUID LEVEL. (K)