Service difficulty report · Pump · Doug MD11F

Difficulty date
March 31, 2011
Submitted
March 31, 2011
Operation
Air carrier
Aircraft
N529FE
Make and model
Doug MD11F
Aircraft serial
48624
Aircraft time
36,143 hours, 6,856 cycles
Part
Pump
Part number
1489951
Part serial
50
Condition
Leaking
Location
Hyd System
Part time
11,984 hours, 3,160 cycles
Stage of operation
NR
How discovered
O
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

TOTAL LOSS OF NR 2 HYD. FOUND UPPER RUDDER NON REV PUMP SHUTOFF VALVE LEAKING. REPLACED VALVE . REPLACED BOTH NR 2 ENG DRIVEN PUMP CASE DRAIN FILTERS. NO CONTMINATION NOTED. FOUND FLUID IN NR2 RESERVIOR AND BOTH CASE DRAIN FILTERS. RAN NR 2 ENG HYD PUMPS OP CK NORMAL. NO LEAKS NOTED. ACFT OK FOR SVC.

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