# SDR HYIA20160104001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2015
- Submitted: January 4, 2016
- Operation: Air carrier
- Aircraft: [N36911](https://openairdocs.org/aircraft/N36911), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: C4020314
- Aircraft time: 35,713 hours, 31,334 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: O-Ring
- Part number: MS28775112
- Condition: Worn
- Location: Master Cylinder
- 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/HYIA20160104001

## Discrepancy

PILOT REPORTED NO RT BRAKE.  INSPECTED & FOUND THE RT MASTER CYLINDER INTERNAL O RING WORN.  REPLACED O RING IAW MM CH 32-40-01.  OPERATIONALLY CHECKED GOOD.

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