# SDR YENA20120727566

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2012
- Submitted: July 31, 2012
- Operation: Air carrier
- Aircraft: [N317JB](https://openairdocs.org/aircraft/N317JB), registered now
- Make and model: Emb ERJ 190-100 IGW
- Registry model: [EMB ERJ 190-100 IGW](https://openairdocs.org/model/embraer-erj-190-100-igw) (OpenAirDocs)
- Aircraft serial: 19000363
- Aircraft time: 6,233 hours, 3,604 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Valve
- Part number: 389075012
- Part serial: 860
- Condition: Failed
- Location: Brake System
- Part time: 6,233 hours, 3,604 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA20120727566

## Discrepancy

FLT BOS-IAD DIVERTED TO DCA, CLIMBING THROUGH 15,000FT "PARKING BRAKE NOT RELEASED" EICAS MESSAGE APPEARED.  ATTEMPTED BRAKE RE-CYCLE MESSAGE WENT AWAY ON ROLL-OUT, WHICH WAS NORMAL.  AFTER LANDING EMERGENCY BRAKE FAULT EICAS MESSAGE ILLUMINATED.  FOUND EMERGENCY BRAKE PRESSURE SWITCH NR 1 INDICATING PRESSURE IN SYSTEM.  REMOVED AND REPLACED EMERGENCY PARKING BRAKE SWITCH NR 1 PER AMM 32-44-09-000-801-A.  REMOVED AND REPLACED EMERGENCY PARKING BRAKE VALVE PER AMM 32-44-01-000-801.  OPS CHECK NORMAL.

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