As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 510 - PHX-OMA - DURING CRUISE, AIRCRAFT LOST 'A' SYSTEM HYDRAULICS. AIRCRAFT CONTINUED TO OMA AND LANDED WITHOUT FURTHER PROBLEMS. CONTRACT MAINTENANCE FOUND O-RINGS SEAL LEAKING AT LT WHEEL WELL HYDRAULIC PRESSURE MODULE. MAINTENANCE REPLACED O-RING, LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (W)