# SDR 0202506717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2002
- Submitted: August 2, 2002
- Operation: Air carrier
- Aircraft: [N617US](https://openairdocs.org/aircraft/N617US), registered now
- Make and model: Boeing 747251F
- Aircraft serial: 21121
- Aircraft time: 88,946 hours, 22,538 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Warning
- Condition: False Activation
- Location: Cockpit
- Stage of operation: DE
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/0202506717

## Discrepancy

DURING DESCENT, THE MASTER FIRE WARNING BELL SOUNDED AND THE LIGHTS ILLUMINATED FOR THREE SECONDS.  AIRCRAFT CONTINUED DESCENT AND LANDED WITHOUT INCIDENT.  RESEATED ALL FIRE WARNING CIRCUIT CARDS.  OPERATIONAL CHECK GOOD.

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