# SDR SIMA201117801

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2011
- Submitted: June 27, 2011
- Operation: Air carrier
- Aircraft: [N689EC](https://openairdocs.org/aircraft/N689EC), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500853
- Aircraft time: 17,319 hours, 15,362 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Smoke
- Location: Cockpit
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201117801

## Discrepancy

ON FLIGHT 4287 THE CREW REPORTED, SELECTED THE NR 1 PACK AND SMOKE CAME THRU THE VENTS.  THE CREW ELECTED TO RETURN TO ORD.  THE AIRCRAFT WAS REMOVED FROM SERIVCE.  PERFORMED ENGINE RUNS AND DID OPERATIONAL CHECK OF NR 1 PACK AND NR 2 PACK SYSTEM IAW EMB 145 AMM 21-51-00.  THE OPERATIONAL CHECK WAS GOOD NO DEFECTS OR SMOKE NOTED.  NO PARTS REMOVED OR REPLACED.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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