Service difficulty report · Pressure Switch · Boeing 757222

Difficulty date
March 29, 2012
Submitted
April 6, 2012
Operation
Air carrier
Aircraft
N545UA
Make and model
Boeing 757222
Aircraft serial
25323
Aircraft time
77,134 hours, 22,351 cycles
Engine
Pwa PW2037
Part
Pressure Switch
Part number
211C223525
Part serial
TO1126C
Condition
Defective
Location
Hyd Pump
Stage of operation
NR
How discovered
9
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

STATUS MESSAGE; FLAP ISOLATION VALVE AND ELEVATOR LT HYD PRESSURE WON'T CLEAR. REPLACED EDP PRESSURE SWITCH PER AMM. ERASED MESSAGES, OPERATED SYSTEMS, NO MESSAGES.