SDR SIMA200708803

Service difficulty report · Pump · Saab 340B

Difficulty date: March 28, 2007
Submitted: March 30, 2007
Operation: Air carrier
Aircraft: N324AE
Make and model: Saab 340B
Aircraft serial: 340B324
Aircraft time: 22,729 hours, 23,853 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 4018502
Part serial: JS21
Condition: Failed
Location: Hyd System
Part time: 16,509 hours, 20,168 cycles
Stage of operation: DE
How discovered: O
Nature of condition: J
Precautionary procedure: B

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

What was found

LOST MAIN HYDRAULIC PUMP, MAIN SYSTEM SHOWED ZERO PRESSURE, PUMP WAS INOPERATIVE. EMERGENCY ACCUMULATOR AND PRESSURE WERE GOOD. EMERGENCY DECLARED. LOST NOSE WHEEL STEERING ON GROUND. REMOVED AND REPLACED HYDRAULIC PUMP IAW SAAB AMM. OPERATIONAL CHECK GOOD, RETURNED AIRCRAFT TO SERVICE.

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