As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4773 - EN ROUTE TO SAT, HYDRAULIC LOW PRESSURE MESSAGE ILLUMINATED ON EICAS. IAW QRH AND COMPANY PROCEDURES, CREW SAFELY LANDED AT NEAREST AIRPORT, HOU. MAINTENANCE REPLACED THE ENGINE DRIVEN PUMP. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE. (M)