# SDR U2RA2026101600065

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2026
- Submitted: October 16, 2026
- Operation: Air carrier
- Aircraft: [N702CA](https://openairdocs.org/aircraft/N702CA), registered now
- Make and model: Boeing 747412
- Aircraft serial: 27217
- Aircraft time: 96,760 hours, 15,084 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 215655
- Part serial: 5063B
- Condition: Malfunctioned
- Location: Zone 100
- 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/U2RA2026101600065

## Discrepancy

REFERENCE AML 0099548-2 INTERMITTENT MAIN DECK FIRE MSG ANNOUNCED ONCE DURING FLIGHT- FALSE. AS A RESULT OF T/S ZONE 12 LOOP A SMOKE DETECTOR FAULT MSG LATCHED PRESENT LEG FAULT SO REPLACED ZONE 12 LOOP A1, A2, A3 SMOKE DETECTOR AND OPER TEST NML IAW AMM 26-14-01 & SSM 26-16-02. NO FURTHER ACTION REQUIRED

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