As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLT GEAR NOT LATCHED LIGHT CAME ON FOLLOWED BY LOSS OF HYD PRESSURE AND THE ILLUMINATION OF THE AILERON AND RUDDER MAN CONTL LIGHTS. ABNORMAL PROCEDURE FOR HYD QUANTITY LOSS WAS PERFORMED AND FLT WAS CONTINUED TO DESTINATION. FOUND SLOT CONTL VALVE LEAKING. REMOVED AND REPLACED VALVE, OPS CHK NORMAL ALL PER DC-8 M/M 27-80-4.