# SDR KCSA2025110259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2025
- Submitted: November 4, 2025
- Operation: Air carrier
- Aircraft: [N712CK](https://openairdocs.org/aircraft/N712CK), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 26414
- Aircraft time: 93,320 hours, 16,585 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Door
- Condition: No Discrepancy
- Location: Zone 800
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA2025110259

## Discrepancy

DOOR RIGHT UPPER DECK.  PERFORMED ADJUSTMENT TEST OF DOOR WARNING SYSTEM IAW B747-400 AMM 52-71-00.  ALL CHECKS PASS AT THIS TIME.

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