# SDR AALA202304057322

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2023
- Submitted: April 5, 2023
- Operation: Air carrier
- Aircraft: [N170US](https://openairdocs.org/aircraft/N170US), registered now
- Make and model: Airbus A320*
- Aircraft serial: 1462
- Aircraft time: 70,246 hours, 26,908 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Valve
- Part number: A254340063000
- Part serial: H1931
- Condition: Defective
- Location: Zone 100 - Fuse
- Part time: 51,901 hours, 32,939 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202304057322

## Discrepancy

AIRCRAFT WAS GROUNDED: BRAKES/MAIN BRAKES PEDALS TO THE FLOOR DURING BRAKING-SPONGY/SENSITIVE-NOT RIGHT. MAINTENANCE REPLACED THE DUAL DISTRIBUTION BRAKE VALVE 2577GM PER AMM 32-43-14 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.

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