# SDR DXTA200701911

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2007
- Submitted: February 5, 2007
- Operation: Air carrier
- Aircraft: [N960QS](https://openairdocs.org/aircraft/N960QS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500160
- Aircraft time: 5,520 hours, 3,352 cycles
- Engine: Allsn AE3007C
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Smoke
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA200701911

## Discrepancy

SMOKE IN CABIN & COCKPIT LANDED IN APPROX 2 MIN UNABLE TO DETERMINE CAUSE.  EMERGENCY DECLARED.  STARTED APU & RAN EACH PACK ONE AT A TIME, STARTED RT ENG SHUTDOWN APU AIR RAN PACKS USING RT ENG. PERFORMED SAME TASK ON LT ENG. NO SMOKE OR ODORS NOTED.  PERFORMED POWER RUNS TO CHECK HP & LP ON ENGS. NOTHING NOTED. ACCESSED BOTH COALESCER SOCKS. NORMAL. REINSTALLED RAN APU WITH BOTH PACKS ON & FULL ELECTRICAL LOAD ON APU. NOTHING NOTED. MOVED ACFT INTO HGR. POWERED UP EVERYTHING, NO DEFECTS NOTED. CHECKED ALL C/BS, ALL NORMAL. CHECK BEHIND BOTH CO-PILOTS & PILOTS CB PANEL. NOTHING NOTED. CHECKED INLET & OUTLET OF ACM'S, CHECKED ACM'S FOR ROTATION BOTH TURN FREELY.  ALL WORK IAW CE-750 MM.

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