# SDR 4NSA20190607002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2019
- Submitted: June 8, 2019
- Operation: Air carrier
- Aircraft: [N374N](https://openairdocs.org/aircraft/N374N), registered now
- Make and model: Emb EMB-500
- Registry model: [EMB EMB-500](https://openairdocs.org/model/embraer-empresa-brasileira-de-emb-500) (OpenAirDocs)
- Aircraft serial: 50000311
- Aircraft time: 3,775 hours, 3,070 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Shutoff Valve
- Part number: 130023027
- Part serial: 394
- Condition: Failed
- Location: Right Side
- Part time: 14 hours
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/4NSA20190607002

## Discrepancy

AFTER TAKE OFF WHILE CLIMBING THROUGH FL250 AND FL310, PILOT NOTICED CABIN PRESSURIZATION WAS INCREASE FOLLOWED BY A BLEED 2 FAIL CAS MESSAGE. PILOT DECLARED AN EMERGENCY AND DIVERTED. AS THEY DESCENDED TO FL250 THE MESSAGE CLEARED AND CABIN PRESSURIZATION NORMALIZED.

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