# SDR IPXA2026092275597

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2026
- Submitted: September 23, 2026
- Operation: Air carrier
- Aircraft: [N625UP](https://openairdocs.org/aircraft/N625UP), registered now
- Make and model: Boeing 747-8F
- Registry model: [Boeing 747-8F](https://openairdocs.org/model/boeing-747-8f) (OpenAirDocs)
- Aircraft serial: 65782
- Aircraft time: 23,108 hours, 3,435 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 330121
- Part serial: 4023570
- Condition: False Activation
- Location: Zone 200
- 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/IPXA2026092275597

## Discrepancy

30 MINS INTO FLIGHT RECEIVED "MD DET MID 2" STATUS MSG FOUND CMC MAINT MSG 26242. T/S CARRIED OUT I.A.W. IFIM 26-16-00-810-823 REV. 07-15-26. SUSPECT MD DETECTOR MID 2 U/S. SMOKE DETECTOR REPLACED I.A.W. AMM 26-14-01 PB. 401 REV. 51. POST INSTALLATION TEST SATIS. CONFIRMED ALL TOOLS, PARTS AND EQUIPMENT REMOVED FROM AIRCRAFT. P/N ON/OFF: 3301-21 S/N ON: 3917493 S/N OFF: 4023570 PART REFERENCE: AIPC 26-14-01-12A ITEM 45 REV. 55

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