SDR 0202716304

Service difficulty report · Pump · Boeing 747451

Difficulty date
August 20, 2002
Submitted
August 26, 2002
Operation
Air carrier
Aircraft
N664US
Make and model
Boeing 747451
Aircraft serial
23819
Aircraft time
55,933 hours, 6,945 cycles
Part
Pump
Part number
3508806
Part serial
MX30867
Condition
Failed
Location
Nr 3 Engine
Part time
37,686 hours
Stage of operation
CL
How discovered
O
Nature of condition
K
Precautionary procedure
H

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

What was found

DURING CLIMB, LOST HYDRAULIC FLUID FROM THE NR 3 HYDRAULIC SYSTEM. TURNED NR 3 HYDRAULIC PUMPS OFF AND AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED THE NR 3 ENGINE DRIVEN HYDRAULIC PUMP. OPERATIONAL CHECK GOOD.