SDR DXTA201711070001

Service difficulty report · Pump · Cessna 560XL

Difficulty date: October 25, 2017
Submitted: November 7, 2017
Operation: Air carrier
Aircraft: N689QS
Make and model: Cessna 560XL
Aircraft serial: 5605659
Aircraft time: 9,766 hours, 7,545 cycles
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Condition: Failed
Location: Hyd System
Stage of operation: TX
How discovered: O
Nature of condition: 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 TAXI, THE ANTI-SKID LIGHT ILLUMINATED FOLLOWED BY POWER CIRCUIT BREAKER. LOW BRAKE PRESSURE ILLUMINATED. FINALLY EMERGENCY BRAKE HAD TO BE USED TO STOP THE AIRPLANE ON THE RAMP. REMOVED AND REPLACED A WORN HYDRAULIC PUMP ASSEMBLY WITH A NEW UNIT. REPLACED PUMP DRIVE DC MOTOR WITH O/H UNIT. BLED BRAKES, OPS & LEAK CHECKED OK IAW MM 32-44-20-2, 32-44-00-2, 33-44-00-5, AND 12-13-01-3.

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