# SDR SIMA20260831003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2026
- Submitted: September 2, 2026
- Operation: Air carrier
- Aircraft: [N273NN](https://openairdocs.org/aircraft/N273NN), 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: 17000778
- Aircraft time: 19,778 hours, 13,255 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Pressure Switch
- Part number: 52615500
- Condition: Failed
- Location: Zone 700
- Stage of operation: DE
- 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/SIMA20260831003

## Discrepancy

PRKG BRK NOT RELEASED EICAS MSG IN CRUISE QRH DID NOT REMEDY THE ISSUE CONTINUED UNTIL LANDING AFTER LANDING EMER BRK FAULT. (EMERGENCY DECLARED). INTERROGATED CMC AND FOUND FAULT CODE 32400015UT1. FOLLOWED FIMTASK 32-41-00-810-863-A TO BLOCK 21. FOUND ISSUE TO BE EMERGENCY/PARKING BRAKE PRESSURE-SWITCH 1. RAR SWITCH IAW AMM 32-44-09-400-801-A. FUNCTIONAL TEST GOOD. NO FURTHER DEFECTS NOTED.

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