# SDR KCSA20240223209

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2024
- Submitted: February 23, 2024
- Operation: Air carrier
- Aircraft: [N767CK](https://openairdocs.org/aircraft/N767CK), registered now
- Make and model: Boeing 747481F
- Aircraft serial: 34017
- Aircraft time: 64,998 hours, 12,157 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 2156756A
- Part serial: 24044B
- Condition: Unknown
- Location: Mid Main Deck
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA20240223209

## Discrepancy

FIRE MAIN DECK MIDDLE.  REMOVED AND REPLACED SMOKE SENSOR ZONE 9 LOOP A IN ACCORDANCE WITH B747 AMM 26-14-01 OPERATIONS TEST GOOD AT THIS TIME.

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