# SDR SWAA2025040805077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2025
- Submitted: April 8, 2025
- Operation: Air carrier
- Aircraft: [N280WN](https://openairdocs.org/aircraft/N280WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32533
- Aircraft time: 58,289 hours, 35,183 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sidewall 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/SWAA2025040805077

## Discrepancy

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT FCB BS500+14 - BS500B LBL23 WL156. MARKED<[01] REMOVED AND REPLACED FLOOR TO SIDEWALL SUPPORT AT FCB BS400 TO BS500D LBL23 IAW SRM 51-40-02 AND DWG 143A7500 ID:0058 REV -<BR>RE-INSTALLED LOWER SUPPORT BS400 LBL23 TO RBL23 IAW SRM 51-40-02 AND DWG 284A0603 ID: 0009 REV: E;[02] VERIFIED ALL STEPS; CORRECTION ACTION ITEM 1; MEASUREMENT FIELD COMPLETE; CARD COMPLETE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.