# SDR 07FDEA02391

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2007
- Submitted: July 9, 2007
- Operation: Air carrier
- Aircraft: [N729FD](https://openairdocs.org/aircraft/N729FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 657
- Aircraft time: 26,046 hours, 14,326 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Brake Assy
- Condition: Malfunctioned
- Location: Mlg
- Stage of operation: TO
- How discovered: C
- Nature of condition: S
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/07FDEA02391

## Discrepancy

A/C POSITIONED AT THE HOLD SHORT LINE WITH PARKING BRAKE SET.  RELEASED BRAKE AND ATTEMPTED TO TAXI FOR TAKEOFF A/C WOULD NOT MOVE.  PARKING BRAKE RESET GOT PERMISSION FROM TOWER TO POWER UP.  RELEASED PARKING  AGAIN.  POWERED UP TO 45 PERCENT N1 WITH NO MOVEMENT OF A/C.  TOWED AIRCRAFT BACK TO GATE WITH NO PROBLEMS.  I.E. PARKING BRAKE RELEASED NORMALLY.  PARKING BRAKE ADJUSTMENT TEST IN PROGRESS.  TOWED AIRCRAFT BACK TO GATE WITH NO PROBLEMS.  I.E. TOWED A/C BACK TO GATE.  PARK BRAKE FUNCTIONED  NORMALLY, AFTER RE-CYCLING BRAKE HANDLE SEVERAL TIMES  ON GATE CARRIED OUT PARKING BRAKE/ULTIMATE  EMERGENCY BRAKING OPERATIONAL TEST PER AM 32-45-00- 5.  NO FAULTS FOUND, CHECKS SERVICEABLE.

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