Service difficulty report · Pump · Boeing 74787UF

Difficulty date
October 7, 2012
Submitted
October 8, 2012
Operation
Air carrier
Aircraft
N852GT
Make and model
Boeing 74787UF
Aircraft serial
37564
Aircraft time
61 hours, 17 cycles
Part
Pump
Part number
972952
Part serial
MX760439
Condition
Leaking
Location
Hyd System
Part time
61 hours, 17 cycles
Stage of operation
NR
How discovered
9
Nature of condition
K, J
Precautionary procedure
O

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

What was found

HYD QTY LOW 2 & HYD PRESSURE ENG 2 EICAS MESSAGES. ON INSPECTION IT WAS FOUND THAT THERE WAS HYD FLUID LEAKING FROM ENG 2 DRAIN MAST, FOR THE ENGINE DRIVEN HYD PUMP. NR 2 EDP REPLACED IAW AMM 29-11-05. DURING LEAK CHECK, A LEAK WAS ALSO FOUND AT THE RT INBD AILERON ACTUATOR PRESSURE LINE. TEMPORARY FLEX LINE INSTALLED IAW EO 4829A001 AND LEAK CHECK WAS GOOD.

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