# SDR HYIA20150827003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2015
- Submitted: August 27, 2015
- Operation: Air carrier
- Aircraft: [N991AA](https://openairdocs.org/aircraft/N991AA), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0317
- Aircraft time: 32,325 hours, 34,897 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: O-Ring
- Condition: Damaged
- Location: Master Cylinder
- Stage of operation: LD
- 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/HYIA20150827003

## Discrepancy

PILOT REPORTED LT BRAKE FAILED UPON LANDING.  R & R O RING ON PISTON IN LT MASTER CYLINDER, SERVICED WITH HYD FLUID.  OPERATIONAL & LEAK CHECKED GOOD.

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