# SDR SIMA990201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N440AM](https://openairdocs.org/aircraft/N440AM), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 440
- Engine: Pwa PW127
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Valve
- Part number: 311489201
- Condition: Failed
- Location: Lt Engine
- Stage of operation: CR
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA990201

## Discrepancy

CRP - FLT 3674 - SMOKE IN THE COCKPIT.  TURNED OFF NR 1 BLEED AD SMOKE CLEARED.  DIVERTED TO CRP.  FERRIED AIRCRAFT TO DFW FOR REPAIR.  REMOVED AND REPLACED NR 1 P2.5 AND P3 AIR SWITCHING VALVE.  GROUND RUN CHECKS GOOD.  (M)

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