# SDR UIEA2016072800642

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2016
- Submitted: July 29, 2016
- Operation: Air carrier
- Aircraft: [N780BA](https://openairdocs.org/aircraft/N780BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24310
- Aircraft time: 78,450 hours, 15,171 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Motor
- Condition: Out Of Adjust
- Location: Parking Brake
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2016072800642

## Discrepancy

CONFIGURE BRAKE EICAS WARNING DURING TAKEOFF, OCCURRED DURING INITIAL THRUST APPLICATION AT APPROXIMATELY 25 KTS.  LOW SPEED REJECT, NO RELATED CMC MESSAGE. IAW FIM TASK 32-44-805 SWAPPED PARK BRAKE VALVE CLOSE RELAY R7514 WITH SERVICEABLE UNIT- NO HELP.  REMOVED PARK BRAKE VALVE MOTOR AND ADJUSTED IAW MM 32-44-08 AND SYSTEM CHECKS NORMAL IAW MM 32-44-00.

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