# SDR SWAA2026091004217

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2026
- Submitted: September 11, 2026
- Operation: Air carrier
- Aircraft: [N931WN](https://openairdocs.org/aircraft/N931WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36637
- Aircraft time: 56,214 hours, 34,452 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shear Web
- Condition: Corroded
- Location: Zone 200
- 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/SWAA2026091004217

## Discrepancy

CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 36 BS 1002 WL 208.    REMOVED AND REPLACED L/H SHEAR WEB FROM BS986-BS1016 LBL34-LBL42 WL 208 RECORD ON CCN TTG8Q01DKS16 DUE TO OUT LIMIT STATEMENT THEREFORE CORROSION FOUND ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 36 BS 1002 WL 208 TO BE RESOLVED ON OTHER FAULT CORRECTIVE ACTION 1

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