# SDR KCSA2025122277

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2025
- Submitted: December 24, 2025
- Operation: Air carrier
- Aircraft: [N710CK](https://openairdocs.org/aircraft/N710CK), registered now
- Make and model: Boeing 747-4B5F
- Registry model: [Boeing 747-4B5F](https://openairdocs.org/model/boeing-747-4b5f) (OpenAirDocs)
- Aircraft serial: 26406
- Aircraft time: 115,915 hours, 19,909 cycles
- System (JASC): [5220 · Emergency Exits](https://openairdocs.org/jasc/5220)
- Part: Door
- Condition: Not Closed
- Location: Zone 800
- Stage of operation: AP
- 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/KCSA2025122277

## Discrepancy

DOOR F/D OVHD A/T: FOUND F/D OVHD DOOR NOT FULLY SECURED. OPENED & CLOSED OVERHEAD HATCH PER B747-400 AMM 52-21-00. NO DEFECTS NOTED. OK FOR CONTINUED SERVICE.

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