What was found
NR 1 HYD PUMP CAUTION LIGHT ILLUMINATED. RAN THE CHECKLIST, ELEVATOR CAUTION ILLUMINATED AFTER PUSHING THE NR 3 HYD ISOLATION VALVE IAW THE CHECKLIST FOR THE NR 1 HYD PUMP CAUTION. PERFORMED VISUAL INSPECTION, FOUND THE NR 1 ENGINE NACELLE DRY AND FLUID ALONG BELLY FROM WING SECTION AFT. INSPECTED AND FOUND 1 HYD SYS BALANCED RELIEF VALVE REPLACED BALANCED RELIEF VALVE IAW 29-11-51-000-801/400-801. NO LEAKS NOTED. COMPLIED WITH T/C CSL84-29-071. REPLACED NR 1 EDP, NO LEAKS NOTED. OPS CHECKS GOOD. COMPLIED WITH MCN NR 5114929232/1. COMPLIED WITH GVI OF SPU, NO LEAKS OR DEFECTS NOTED. COMPLIED WITH TASK 05-54-00-280-801, PAR 1 THROUGH 5A3 AND 6AB. NO FURTHER DEFECTS OR LEAKS NOTED. RETURNED TO SERVICE.