SDR MALA100206

Service difficulty report · Pump · Saab 340B

Difficulty date: December 20, 2010
Submitted: December 22, 2010
Operation: Air carrier
Aircraft: N435XJ
Make and model: Saab 340B
Aircraft serial: 340B435
Aircraft time: 27,719 hours, 30,583 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Condition: Inoperative
Location: Hyd System
Stage of operation: AP
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

DURING LANDING GEAR EXTENSION, HYD CAUTION LIGHT CAME ON WITH ZERO MAIN ACCUMULATOR PRESSURE AND ZERO HYD QUANTITY. OTHER ACCUMULATORS SHOWED ABOUT 2800 PSI. REPLACED HYD LINE AS REQ. REPLACED HYD PUMP AS PRECAUTIONARY PN ON/OFF 40185-02, SN ON KG73, SN OFF KD18. PERFORMED GEAR SWINGS AS PRECAUTIONARY. OPS CHECK GOOD REF AMM 29-10. NO LEAKS NOTED.

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