SDR DLM88080649

Service difficulty report · Pump · Doug MD88

Difficulty date: April 30, 2008
Submitted: May 7, 2008
Operation: Air carrier
Aircraft: N944DL
Make and model: Doug MD88
Aircraft serial: 49817
Aircraft time: 50,298 hours, 38,899 cycles
Engine: Pwa JT8D219
Engine time: 50,075 hours, 39,479 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 623337
Part serial: MX488185
Condition: Inoperative
Location: Hyd System
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

RIGHT ENGINE HYDRAULIC PUMP FAILED IN FLIGHT, ZERO PRESSURE PRESSURE GOOD WITH AUX HYD PUMP, RETURNED TO ATL. REPLACED ENGINE HYDRAULIC PUMP, CASE DRAIN AND PRESSURE FILTERS. REPLACED RT HYDRAULIC SYSTEM MAIN FILTERS- OPERATED ENGINE PRESSURE CKS GOOD, LK CKS GOOD.

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