SDR SWAA2017090616158

Service difficulty report · Pump · Boeing 7377H4

Difficulty date: September 4, 2017
Submitted: September 7, 2017
Operation: Air carrier
Aircraft: N443WN
Make and model: Boeing 7377H4
Aircraft serial: 29838
Aircraft time: 49,756 hours, 28,783 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 849589
Part serial: MX613917
Condition: Leaking
Location: Nr 1 Engine
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

AIR TURNBACK/DECLARED EMERGENCY, ON DEPARTURE ON THE CLIMB THROUGH 4,000 FT LOSS ALL HYDRAULIC A FLUID & PRESSURE, FOLLOWED BY SYSTEM A ENGINE & ELECTRIC HYDRAULIC PUMP LOW PRESSURE LIGHT. R&R NR 1 ENGINE DRIVEN HYDRAULIC PUMP PER AMM.

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