# SDR UHLA2014120900847

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 9, 2014
- Submitted: December 12, 2014
- Operation: Air carrier
- Aircraft: N634RW
- Make and model: Emb ERJ 170-100 SE
- Registry model: [EMB ERJ 170-100 SE](https://openairdocs.org/model/embraer-erj-170-100-se) (OpenAirDocs)
- Aircraft serial: 17000055
- Aircraft time: 28,703 hours, 17,751 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Condition: Smoke
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UHLA2014120900847

## Discrepancy

DURING CLIMBOUT, SMELLED SMOKE AND VISUALLY COULD SEE A HAZE IN THE COCKPIT.  THE F/A ALSO DETECTED SMOKE AND SAW A HAZE IN THE FORWARD CABIN.  RAN THE QRH IAW PAGE SMO-5, SOURCE OF SMOKE WAS UNIDENTIFIED.  DECLARED EMERGENCY, RETURNED TO FIELD, LANDED WITHOUT INCIDENT.  R & R NR 1 ACM.

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