Service difficulty report · Pump · Boeing 777222

Difficulty date
September 17, 2007
Submitted
September 22, 2007
Operation
Air carrier
Aircraft
N775UA
Make and model
Boeing 777222
Aircraft serial
26947
Aircraft time
47,828 hours, 9,058 cycles
Engine
Pwa PW4077
Engine time
41,392 hours, 7,878 cycles
Part
Pump
Condition
Failed
Location
Hyd System
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NR 2 ENG EDP FAILED DURING ENG RUN. 10-16-07 REPLACED ENGINE DRIVEN HYDRAULIC PUMP PER MM 29-11-0 5. FOUND SLUDGE IN LINES & FLUSHED SYSTEM LINES. ALL VALVES CHECKED OK. HYDRAULIC SYSTEM CHECKS OK FOR SERVICE.