Service difficulty report · Warning Light · Boeing 757222

Difficulty date
August 13, 2006
Submitted
August 22, 2006
Operation
Air carrier
Aircraft
N522UA
Make and model
Boeing 757222
Aircraft serial
24931
Aircraft time
52,252 hours, 19,603 cycles
Engine
Pwa PW2037
Part
Warning Light
Condition
False Activation
Location
Hyd System
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
D

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

What was found

LEFT HYD RSVR PRESS LOW EICAS MSG CAME ON DURING TAXI WITH ASSOC OVERHEAD LIGHT. WOULD NOT GO AWAY WITH BLEED AIR ON. THIS IS ATTRIBUTED TO A FAULTY PRESSURE SWITCH IN THE HYDRAULIC RESERVOIR. REPLACED PRESSURE SWITCH.