SDR 0500115518

Service difficulty report · Pump · Boeing 757251

Difficulty date
January 21, 2005
Submitted
January 26, 2005
Operation
Air carrier
Aircraft
N518US
Make and model
Boeing 757251
Aircraft serial
23206
Aircraft time
60,265 hours, 25,011 cycles
Part
Pump
Part number
623303
Part serial
MX407666
Condition
Leaking
Location
Hyd System
Part time
58,898 hours, 24,174 cycles
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
H

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

What was found

DURING FLIGHT, THE CENTER HYDRAULIC PUMPS WERE TURNED OFF DUE TO THE HYDRAULIC QUANTITY AND PRESSURE WENT TO ZERO. LANDING WAS UNEVENTFUL. FOUND ELECTRIC PUMP LEAKING AT THE LOWER SEEP HOLE. REPLACED THE PUMP AND SERVICED SYSTEM. OPERATIONAL CHECK GOOD.