# SDR UIEA2024121701172

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2024
- Submitted: December 18, 2024
- Operation: Air carrier
- Aircraft: [N473MC](https://openairdocs.org/aircraft/N473MC), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 27174
- Aircraft time: 119,010 hours, 21,452 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Warning
- Condition: False Activation
- Location: Zone 100
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2024121701172

## Discrepancy

AFT CARGO FIRE WARNING DURING TAXI WITH MOMENTARY STATUS MSG "FIRE DET AFT 2". AFT CARGO DETECTOR 1A AND 2A INOP.(<P>PERFORMED OPS CHECK AND GROUND TEST FOR CARGO FIRE DETECTION SYSTEM. THIS CLEARS DMI, PLACARDS REMOVED. 0733Z/JE. </P>)

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