# SDR AALA202302135657

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2023
- Submitted: February 13, 2023
- Operation: Air carrier
- Aircraft: [N700UW](https://openairdocs.org/aircraft/N700UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 885
- Aircraft time: 64,152 hours, 37,543 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Master Cylinder
- Part number: C245920001
- Part serial: H4726
- Condition: Bypassing
- Location: Zone 100 - Fuse
- Part time: 52,295 hours, 24,970 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202302135657

## Discrepancy

AIRCRAFT WAS GROUNDED: LEFT BRAKE PEDAL VERY SOFT TO ALMOST NO FEEL. MAINTENANCE REPLACED VALVE BRAKE DUAL DISTRIBUTION PER AMM 32-43-14. (AALA202302138912), REPLACED BRAKE DUAL SHUTTLE VALVE (AALA202302139859), REPLACED YELLOW BRAKE RETURN CHECK VALVE 3024GM PER AMM 29-00-00-910-003A (AALA202302138010) AND REPLACED LEFT BRAKE MASTER CYLINDER PER AMM 32-43-12-400-001A. (AALA202302135657). A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.

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