# SDR SWAA2026091043548

- 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: Floor Support
- 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/SWAA2026091043548

## Discrepancy

CORROSION FOUND IN (MULTIPLE SPOTS) ON TOP AFT (WET AREA) FLOOR STRUCTURE AT LBL 54 BS 947 - BS 995 WL 208 (MOP-SEAL)  CORROSION ON AED INNER CHORD EVALUATED AND FOUND TO BE OUT LIMITS  ORIGINAL MATERIAL THICKNESS IS 0.080" LOWEST MATERIAL REMAINING IS 0.067" REMOVED AND REPLACED I.A.W SRM 51-10-02-0G-0 SRM 51-40-02-0G-0 AND BOEING DWG 147A8501 REV: B 147A8501 REV: B 147A8540 REV: B.

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