# SDR YADA2021123101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2021
- Submitted: January 4, 2022
- Operation: Air carrier
- Aircraft: [N124AX](https://openairdocs.org/aircraft/N124AX), registered now
- Make and model: Beech 1900C
- Registry model: [Beech 1900C](https://openairdocs.org/model/beech-1900c) (OpenAirDocs)
- Aircraft serial: UC158
- Aircraft time: 32,487 hours, 36,539 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: None
- Condition: None
- Component: Brake Master Cy
- Component part number: 903800010035
- Stage of operation: NR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YADA2021123101

## Discrepancy

PILOT REPORT - CAPTAINS LEFT BRAKE PEDAL LOOSES PRESSURE AND GOES TO FLOOR - NO BRAKE.  MAINTENANCE REPLACED THE CAPTAINS LEFT BRAKE MASTER CYLINDER.

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