Service difficulty report · Pump · Doug MD11F

Difficulty date
November 2, 2013
Submitted
November 4, 2013
Operation
Air carrier
Aircraft
N644FE
Make and model
Doug MD11F
Aircraft serial
48444
Aircraft time
78,961 hours, 14,177 cycles
Part
Pump
Part number
887673
Part serial
MX600628
Condition
Leaking
Location
Nr 3 Hyd
Part time
10,319 hours, 8,763 cycles
Stage of operation
AP
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

LEVEL 2 NR 3 HYD FAIL ON SHORT FINAL, 3.9 GAL LEFT BOTH PUMPS WERE OFF. FOUND NR 3 FWD EDP LEAKING AT PUMP HSG ON ENGINE. R & R NR 3 ENGINE FWD EDP IAW AMM 29-11-20-4-2, SERVICE NR 3 HYD SYS TO PROPER LEVEL IAW AMM 12-13-02-3, DRY MOTORED NR 3 ENGINE IAW JRH, NO LEAK NOTE. NR 3 ENG RAN IAW AND OBSERVED HYD QTY IN GAUGE, NO DROP. ACFT OK FOR SERVICE.

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