# SDR KCSA202305241054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2023
- Submitted: May 25, 2023
- Operation: Air carrier
- Aircraft: [N700CK](https://openairdocs.org/aircraft/N700CK), registered now
- Make and model: Boeing 747-4R7F
- Registry model: [Boeing 747-4R7F](https://openairdocs.org/model/boeing-747-4r7f) (OpenAirDocs)
- Aircraft serial: 25868
- Aircraft time: 112,645 hours, 20,943 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA202305241054

## Discrepancy

CRACK FOUND ON BULK HEAD BELOW LONGERON FITTING AT STA 1480 WL 150 LBL 109

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