SDR DLM11030367

Service difficulty report · Pump · Doug MD11

Difficulty date: April 16, 2003
Submitted: April 30, 2003
Operation: Air carrier
Aircraft: N811DE
Make and model: Doug MD11
Aircraft serial: 48566
Aircraft time: 41,994 hours, 5,960 cycles
Engine: Pwa PW4460
Engine time: 41,224 hours, 5,564 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Condition: Unserviceable
Location: Nr 2 Hyd Sys
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

ON ARRIVAL TO ATL HAD NR 2 ENGINE HYDRAULIC PUMP HIGH TEMP INDICATION. AFTER TROUBLE SHOOTING CAUSE FOUND CHECK VALVE HAD FAILED, CONTAMINATING THE ENTIRE SYSTEM AND INTERNAL FAILURE OF THE PUMPS, METAL IN ALL THE FILTER BODIES NO.2 SYSTEM. REPLACED PUMPS, FILTERS, FLUSHED SYSTEM, RESERVICED

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