Service difficulty report · Connector · Boeing 777222

Difficulty date
September 10, 2007
Submitted
September 15, 2007
Operation
Air carrier
Aircraft
N799UA
Make and model
Boeing 777222
Aircraft serial
26926
Aircraft time
41,471 hours, 6,291 cycles
Engine
Pwa PW4090
Part
Connector
Condition
Damaged
Location
Hyd Pump
Stage of operation
NR
How discovered
O
Nature of condition
M
Precautionary procedure
O

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

What was found

HYD PUMP DEM C2 LOW CENTER HYDRAULIC DEMAND PUMP NR 2 PRESSURE WHEN COMMANDED ON, OR CENTER DEMAND PUMP NR 2 OVERHEATED. 10-05-07 AFTER TROUBLESHOOTING & HISTORY REVIEW, DETERMINED THAT NR 2 CONTROL HYD PUMP OPERATED OK FOR SEVERAL LEGS AFTER PIN D7716B (OF WDM29-11-40) WAS REPOSITIONED. REMOVED CONNECTOR PINS AND RE-PINNED UNIT. TESTED OK FOR SERVICE.