SDR CALA2013091600658

Service difficulty report · Pump · Boeing 737824

Difficulty date: September 12, 2013
Submitted: September 16, 2013
Operation: Air carrier
Aircraft: N14235
Make and model: Boeing 737824
Aircraft serial: 28947
Aircraft time: 45,201 hours, 16,863 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 849589
Part serial: MX765825
Condition: Failed
Location: Nr 1 Engine
Part time: 6 hours, 3 cycles
Stage of operation: CL
How discovered: O
Nature of condition: K, J
Precautionary procedure: A

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

What was found

NR 1 ENGINE DRIVEN "A'' HYD LOW PRESSURE LIGHT ILLUMINATED. FOLLOWED QRH, FOUND NR 1 ENGINE DRIVEN HYD PUMP FAILED, REPLACED IAW AMM 29-11-11. REPLACED ASSOCIATED FILTERS. FILTERS REPLACED, CASE DRAIN, PRESSURE MODULE, RETURN FILTER & PTU PRESSURE FILTER. PUMP & FILTERS OPERATIONS & LEAK CHECKED NORMAL.