SDR FDEA200907312854

Service difficulty report · Hydraulic System · Doug MD11F

Difficulty date: July 31, 2009
Submitted: July 31, 2009
Operation: Air carrier
Aircraft: N615FE
Make and model: Doug MD11F
Aircraft serial: 48767
Aircraft time: 47,546 hours, 10,471 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: Hydraulic System
Condition: Low
Location: Nr 3
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

RECEIVED "HYD 3 OFF" ALERT AT CRUISE, WITHIN 35 MINS HYD SYS 3 QTY WENT FROM 4.0 TO 2.6 GALLONS. DURING LANDING, GEAR EXTENSION RECEIVED " HYD 3 FAIL" ALERT. REMOVED AND REPLACED, HORIZ STAB PRIMARY CONTROL VALVE "PRESSURE FITTING UNION ASSY" OPS CHECK NORMAL, NO LEAKS NOTED. SERVICED NR 3 HYD SYS TO SERVICE, CHECK LIMITS .

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