# SDR SIMA20250520002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2025
- Submitted: May 21, 2025
- Operation: Air carrier
- Aircraft: [N247NN](https://openairdocs.org/aircraft/N247NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000619
- Aircraft time: 22,274 hours, 14,884 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Pressure Switch
- Part number: 5261514314
- Condition: Failed
- Location: Zone 700
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20250520002

## Discrepancy

PRKG BRK NOT RELEASED EICAS MESSAGE INFLIGHT DID NOT CLEAR. QRH DID NOT CLEAR MESSAGE. EMER BRK FAULT ADVISORY AFTER LANDING. NO ACTION REQUIRED ON QRH. EMERGENCY DECLARED. PERFORMED A/C RESET AND FIM 32-41-00-810-863-A. FAULT WOULD NOT CLEAR. SUSPECTED BAD PRESSURE SWITCH. REMOVED AND REPLACED NUMBER 1 HYDRAULIC SYSTEM BRAKE PRESSURE SWITCH IAW AMM 32-44-09. OPERATIONAL AND LEAK CHECK GOOD IAW AMM 32-44-09.SEE LGPG 111300890/1 FOR FURTHER INFO

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