# SDR SWAA2024121871693

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2024
- Submitted: December 18, 2024
- Operation: Air carrier
- Aircraft: [N439WN](https://openairdocs.org/aircraft/N439WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29834
- Aircraft time: 70,839 hours, 42,333 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Attach Angle
- Condition: Cracked
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024121871693

## Discrepancy

B.S. 663 LOWER COMPOSITE BULKHEAD UPPER ATTACH ANGLE IS CRACKED AT L.B.L. 45; W.L. 167.<[01] REMOVE AND REPLACED L/H UPPER ANGLE AT VAPOR BARRIER BS 663 BETWEEN LBL 6 TO LBL 65 PER SRM 51-40-02 AND DWG:111A1000;ID:0141; REV:-;[02] VERIFIED CORRECTIVE ACTION 1

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