What was found
NR 2 EDP LOW PRESSURE LIGHT CAME ON 2.5 HOURS INTO FLT. SUSPECT PUMP FAILURE AS PRESSURE FOR SYS 'A' BEGAN DROPPING WHEN NR 2 ENGINE HYD PUMP MOMENTARILY TURNED OFF, DETERMINED NORMAL AFTER EVALUATION. NR 1 EDP LOW PRESSURE LIGHT ILLUMINATED ABOUT 3.5 HOURS INTO FLT. NR 2 DEP LOW PRESSURE LIGHT ILLUMINATED 4.5 HOURS INTO FLT. DIVERTED TO HNL FOR MAINT & LANDED WITH NO FURTHER INCIDENT. REPLACED NR 1 & NR 2 EDP. REPLACED CASE DRAIN FILTERS FOR NR 1, 2 EDP & NR 2 EMP. AS A PRECAUTION, 'A' & 'B' SYSTEM PRESSURE MODULE & RETURN MODULE FILTERS REPLACED. INCORPORATED EA 700-29-001R1 TO REMOVE 'A' & 'B' SYS DEPRESSURIZATION VALVES FROM HYD SYS. HYD SYS TESTED CHECKED GOOD. A/C RETURNED TO SERVICE. (M)