SDR SWAA2016071253705

Service difficulty report · Pump · Boeing 7377H4

Difficulty date: July 8, 2016
Submitted: July 12, 2016
Operation: Air carrier
Aircraft: N215WN
Make and model: Boeing 7377H4
Aircraft serial: 32487
Aircraft time: 40,317 hours, 23,284 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Part number: 849589
Part serial: MX613910
Condition: Failed
Location: Hyd System
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

DURING CLIMB, RECEIVED A NR 1 ENGINE HYDRAULIC `A` LOW PRESSURE LIGHT. PERFORMED THE HYDRAULIC PUMP LOW PRESSURE CHECK LIST. SAW HYDRAULIC A QUANTITY DOWN TO 19% WITHIN 10 MINUTES, DOWN TO 15% ON APPROACH. R & R THE NR 1 ENGINE DRIVEN HYDRAULIC PUMP IAW AMM.

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