# SDR C2XA02TY175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2002
- Submitted: December 20, 2002
- Operation: Air carrier
- Aircraft: [N13979](https://openairdocs.org/aircraft/N13979), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145181
- Aircraft time: 7,532 hours, 5,334 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Check Valve
- Part number: 9067403
- Part serial: 0021
- Condition: Inoperative
- Part time: 10,848 hours, 8,407 cycles
- Stage of operation: IN
- 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/C2XA02TY175

## Discrepancy

TYS, During a scheduled inspection, the parking brake system failed operational check of the return line valve. Maintenance removed and replaced the return line check valve. operational checked good. I/A/W-EMB-145-AMM-32-44-08 and 01. Aircraft released to service.

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