# SDR ASOA20140815087

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 15, 2014
- Submitted: August 18, 2014
- Operation: Air carrier
- Aircraft: [N17159](https://openairdocs.org/aircraft/N17159), registered now
- Make and model: Emb EMB-145XR
- Registry model: [EMB EMB-145XR](https://openairdocs.org/model/embraer-emb-145xr) (OpenAirDocs)
- Aircraft serial: 145792
- Aircraft time: 29,886 hours, 16,885 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Sensor
- Part number: 8152892
- Part serial: 03476
- Condition: Disconnected
- Location: Cabin
- Part time: 29,881 hours, 16,881 cycles
- 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/ASOA20140815087

## Discrepancy

F/A REPORTED SMOKE COMING FROM FLOOR VENT AT ROW NR 7 WHILE CLIMBING OUT AT 400 FT WITH BOTH PACKS OPERATING OFF APU.  F/A DESCRIBED SMOKE AS "THICK AND GREY" MOVING ACROSS AISLE. CREW ELECTED TO DECLARE EMERGENCY AND AIR RETURN BACK TO EWR WITHOUT INCIDENT.  MX PERFORMED FIM TASK 21-20-00-810-801-A AND FOUND DUCT FOR AMBIENT TEMP SENSOR BOX ASSY AND AFT HOSE FOR RECIRCULATING FAN NR 2 DISCONNECTED. MX REATTACHED BOTH DUCTS AND R & R THE AMBIENT TEMP SENSOR WITH OPS CHECK GOOD. ACFT WAS APPROVED FOR RETURN TO SERVICE.

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