SDR USAAD97135

Service difficulty report · Hyd Pump · Doug DC931

Difficulty date: August 7, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N985VJ
Make and model: Doug DC931
Aircraft serial: 47208
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Hyd Pump
Part number: AS66411LS666
Condition: Failed
Location: Lt Engine
Part time: 29,893 hours
Stage of operation: CL
Nature of condition: J, K
Precautionary procedure: A

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

What was found

PIT - ON CLIMB PASSING 9,000 FEET, CREW RECEIVED THE LEFT HYDRAULIC PRESSURE LIGHT. AFTER APPROXIMATELY 2 MINUTES, THE PRESSURE DROPPED TO ZERO. FLIGHT RETURNED TO PIT AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE DRIVEN HYDRAULIC PUMP. (X)

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