Service difficulty report · Pump · Boeing 757222

Difficulty date
March 17, 2011
Submitted
April 4, 2011
Operation
Air carrier
Aircraft
N546UA
Make and model
Boeing 757222
Aircraft serial
25367
Aircraft time
72,405 hours, 21,073 cycles
Engine
Pwa PW2037
Part
Pump
Part number
731966
Part serial
7252
Condition
Faulty
Location
Hyd Sys
Stage of operation
TX
How discovered
O
Nature of condition
M, J
Precautionary procedure
A

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

What was found

L ELEC HYD PUMP OVERHEAT EICAS, FLIGHT DIVERTED. LOW PRESSURE LIGHT OPERATED NORMAL. PUMP PRESSURE VERIFIED TO BE OPERATING NORMAL. TEMP INDICATION 24 DEGREES C. REPLACED L ELEC HYD PUMP PER AMM. LEAK CHECKED GOOD.