# SDR MK9A20140421001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2014
- Submitted: April 21, 2014
- Operation: Air carrier
- Aircraft: [N839MA](https://openairdocs.org/aircraft/N839MA), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B2392
- Aircraft time: 2,241 hours, 4,290 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Master Cylinder
- Part number: 26820011
- Condition: Weak
- Location: Brake System
- Part time: 2,241 hours, 4,290 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MK9A20140421001

## Discrepancy

PIC & SIC BRAKES FAILED COMPLETELY DURING TAXI.

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