# SDR 2023F00012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2023
- Submitted: January 3, 2023
- Operation: General aviation
- Aircraft: [N405YK](https://openairdocs.org/aircraft/N405YK), registered now
- Make and model: Boeing 737436
- Aircraft serial: 25267
- Aircraft time: 25,267 hours, 25,267 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Bs 178
- Part time: 59,561 hours, 41,372 cycles
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023F00012

## Discrepancy

APPROX 2" CRACK ON INBD FLANGE OF VERTICAL CHORD RADIUS, LBL 5.7 WL 184 ON STA 178 BULKHEAD.

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