What was found
DURING CRUISE OPERATION AT FL 300, THE NR 1 ENGINE HYD SYS "A" LOW PSI LIGHT ILLUMINATED. ACFT DIVERTED WHERE IT LANDED WITHOUT INCIDENT. POST FLIGHT INSP WAS PERFORMED, NOTING THAT THE NR1 ENGINE "A" SYSTEM HYD SYSTEM PUMP WAS AT FAULT. PERFORMED OPS CHECKS, WITH NO OTHER DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.