# SDR UIEA2020123102634

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2020
- Submitted: January 4, 2021
- Operation: Air carrier
- Aircraft: [N499MC](https://openairdocs.org/aircraft/N499MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29260
- Aircraft time: 85,141 hours, 14,550 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Smoke Warning
- Condition: False Activation
- Location: Main Deck Cargo
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020123102634

## Discrepancy

MAIN DECK CARGO LOOP 12B, 11B MULTIPLE MD CARGO LOOP A STATUS MESSAGE PRODUCED WITH CGO DET 12 MAIN DECK MAIN DECK FIRE IND CAME AND EXTINGUISHED, NO FIRE PRESENT.  CLEANED, INSPECTED AND TESTED ALL AFFECTED SMOKE DETECTORS, IAW AMM 26-14-00.  OPERATIONS CHECK GOOD.

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