# SDR DXTA2011011104406

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2011
- Submitted: January 13, 2011
- Operation: Air carrier
- Aircraft: [N605QS](https://openairdocs.org/aircraft/N605QS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605321
- Aircraft time: 7,174 hours, 5,723 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Motor
- Part number: MP50B1
- Part serial: 2390
- Condition: Failed
- Location: Power Pack
- Stage of operation: TX
- How discovered: O
- Nature of condition: S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2011011104406

## Discrepancy

DURING TAXI OUT FOR 135 LEG, CREW OBSERVED LOW BRAKE PRESS/ANTI-SKID M/C, NO BRAKE PRESSURE IN POWER BRAKE SYS, POWER BRAKE CB REMAINED IN, USED EMERGENCY BRAKE TO STOP ACFT ON TAXIWAY, SHUTDOWN ACFT.  REMOVED FAULTY POWER PACK MOTOR ASSY AND INSTALLED AN O/H ASSY. SERVICED ACCUMULATOR & PRE DIED BRAKES AND ALL OPS & LEAK CHECKS GOOD AT THIS TIME.  WORK DONE IAW MM 32-42-06.

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