# SDR 9809546641

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 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): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Warning
- Condition: Activated
- Location: Nr 1 Engine
- Stage of operation: TO
- Nature of condition: N
- Precautionary procedure: C, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9809546641

## Discrepancy

DURING TAKEOFF, THE NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED AND THE FIRE BELL SOUNDED.  AIRCRAFT ABORTED TAKEOFF RESULTING IN 10 BLOWN TIRES.  AIRCRAFT STOPPED ON TAXI-WAY WHERE THE PASSENGERS WERE SAFELY DEPLANED AND TRANSPORTED BACK TO THE TERMINAL.  REPLACED THE NR 1 ENGINE PRESSURE REGULATING VALVE AND CLAMP, OPERATIONAL CHECK GOOD.

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