# SDR UPS05M44875

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2005
- Submitted: July 14, 2005
- Operation: Air carrier
- Aircraft: [N252UP](https://openairdocs.org/aircraft/N252UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48768
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Valve
- Condition: Failed
- Location: Nr 3 Brake Sys
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05M44875

## Discrepancy

ANTI SKID R FAIL W/SUBSEQUENT DEACTIVATION OF NR 3 BRAKE.  LANDING ROLL REQUIRED EXCESSIVE BRAILING WITH SHUDDER FAVORING RIGHT SIDE.  REMOVED AND REPLACED NR 3 BRAKE SYS A/S VLV.  PERFORMED ANTI SKID SYS OPS TEST ON 10 BRAKES BOTH SYS.  A/S TEST NORMAL.

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