As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT WITH AIRCRAFT IN CRUISE FLIGHT, HYDRAULIC PRESSURE INDICATED 2350 PSI (ABOVE RED LINE). AIRCRAFT LANDED LAS WITHOUT INCIDENT. AIRCRAFT FERRIED TO ONT FOR MAINTENANCE. MAINTENANCE REPLACED HYDRAULIC POWER PACK DUE TO A PRESSURE RELIEF FUNCTION INOPERATIVE PER MM 29-10-10. ALL FUNCTIONAL AND LEAK CHECKS NORMAL. AIRCRAFT WAS TEST FLOWN. RESULTS: SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE. (X)