# SDR SWAA2026091417259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2026
- Submitted: September 15, 2026
- Operation: Air carrier
- Aircraft: [N207WN](https://openairdocs.org/aircraft/N207WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34012
- Aircraft time: 67,408 hours, 40,812 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Location: Zone 100
- 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/SWAA2026091417259

## Discrepancy

CORROSION ON UPPER MAIN SILL WEB LOCATED BTW BS 440 TO BS 492.4 RBL 68 WL 200 AT FWD CARGO BAY.  REPLACED UPPER MAIN SILL WEB AND FASTENERS LOCATED BTW BS 440 TO BS 492.4 RBL 68 WL 200 AT FWD CARGO BAY IAW BOEING SRM 51-40-02 DWG 143A8111 SHEET 1 REV -. AND DWG 143A8110 SHEET 16.

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