# SDR SWAA2025090900054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2025
- Submitted: September 9, 2025
- Operation: Air carrier
- Aircraft: [N906WN](https://openairdocs.org/aircraft/N906WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36887
- Aircraft time: 57,218 hours, 33,367 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- 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/SWAA2025090900054

## Discrepancy

MULTIPLE SPOTS WITH CORROSION ON FCB SIDEWALL-TO-FLOOR SUPPORT NUTPLATE HOLES AT BS400+15;BS460+2 TO BS500D+15 LBL25 WL156.  REMOVED AND REPLACED SIDEWALL SUPPORT BS 400 TO BS 500D LBL 25 WL 156 IAW SRM 51-40-05 IAW SRM 51-40-02<BR>AND DWG #143A7500 ID: 0036 REV -.

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