Service difficulty report · Hyd Pump · Boeing 737130

Difficulty date
August 23, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N77204
Make and model
Boeing 737130
Aircraft serial
19021
Part
Hyd Pump
Part number
6507506
Condition
Leaking
Location
Nr 2 Engine
Part time
17,287 hours
Stage of operation
TO
Nature of condition
K, J
Precautionary procedure
A

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

What was found

THE NR 2 ENGINE A-HYD PUMP LOW PRESSURE LIGHT ILLUMINATED AFTER TAKEOFF. THE NR 1 ENGINE A-HYD PUMP LOW PRESSURE LIGHT ILLUMINATED AND THE EMERGENCY CHECKLIST FOR LOSS OF HYD WAS COMPLETED. THE AIRCRAFT WAS RETURNED AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND FLUID LEAKING FROM CASE DRAIN OF THE NR 2 ENGINE A-HYD PUMP. THE PUMP WAS REMOVED AND REPLACED IAW MM 29-10-32, PAGE 401. IN ADDITION, THE NR 1 ENGINE DRIVEN HYD PUMP WAS REMOVED AND REPLACED. THE A-HYD SYSTEM WAS SERVICED TO FULL. LEAK AND OPERATIONAL CHECKS WERE GOOD.