# SDR 9809806641

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N641NW
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21941
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Pneumatic Syst
- Condition: Failed
- Location: Nr 2 Engine
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9809806641

## Discrepancy

DURING CLIMB, THE NR 2 ENGINE FIRE WARNING SOUNDED.  SHUT DOWN THE ENGINE AND DISCHARGED THE FIRE BOTTLE.  AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT INCIDENT.  REPLACED THE NR 2 ENGINE STARTER, CONSTANT SPEED DRIVE, STARTER SHUTOFF VALVE, HIGH STAGE VALVE, AND HIGH STAGE CONTROL.  OPERATIONAL CHECK GOOD.

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