SDR 0400629855

Service difficulty report · Pump · Doug DC951

Difficulty date
April 26, 2004
Submitted
April 29, 2004
Operation
Air carrier
Aircraft
N764NC
Make and model
Doug DC951
Aircraft serial
47717
Aircraft time
65,414 hours, 66,474 cycles
Part
Pump
Part number
AS19593C
Part serial
21710
Condition
Failed
Location
Rt Hyd System
Stage of operation
LD
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

PILOT REPORTED THE LOSS OF HYDRAULIC FLUID FROM THE RIGHT HYDRAULIC SYSTEM. LANDING WAS WITHOUT INCIDENT AND MAINTENANCE FOUND THE ELECTRICAL AUXILIARY PUMP LEAKING FROM A SPLIT DRAIN LINE. THE ELECTRIC AUXILIARY PUMP AND THE RIGHT ENGINE DRIVEN PUMP WERE REPLACED, THE CASE DRAIN FILTER WAS CHECKED, AND A FUNCTIONAL LEAK CHECK WAS ACCOMPLISHED. AIRCRAFT RETURNED TO SERVICE.

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