Service difficulty report · Pressure Switch · Boeing 757222

Difficulty date
April 8, 2010
Submitted
April 9, 2010
Operation
Air carrier
Aircraft
N589UA
Make and model
Boeing 757222
Aircraft serial
28707
Aircraft time
49,017 hours, 13,651 cycles
Engine
Pwa PW2037
Part
Pressure Switch
Condition
Faulted
Location
Hyd Pump
Stage of operation
LD
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ON LANDING RT ENG HYD PUMP ON EICAS. MOTORED ENGINE, PRESSURE CHECKS NORMAL. LOW PRESSURE LIGHTS OPS NORMAL. HAS HISTORY. PUMP, AND FILTERS REPLACED PREVIOUSLY. NEEDS FURTHER TROUBLESHOOTING. REMOVED AND REPLACED RT EDP PRESSURE SWITCH. OPS CHECK & LEAK CHECK GOOD ON GND TEST.