# SDR SIMA980411

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N407AT](https://openairdocs.org/aircraft/N407AT), 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: 407
- Engine: Pwa PW127
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Valve
- Part number: 311325201
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: CR
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA980411

## Discrepancy

ORD - FLT 4123 - FLT CREW REPORTED SMOKE SMELL IN THE CABIN AND COCKPIT.  MAINTENANCE R/I'D P2.5/P3 SWITCHING VALVE AND NL PROBE IAW PWA MM 72-01-60.  PERFORMED GROUND ENGINE RUNS SATISFACTORILY.  RETURNED A/C TO SERVICE.  (M)

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