# SDR SWAA2026051992755

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2026
- Submitted: May 20, 2026
- Operation: Air carrier
- Aircraft: [N258WN](https://openairdocs.org/aircraft/N258WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32516
- Aircraft time: 64,221 hours, 38,671 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sidewall Support
- Part number: 146A750251
- 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/SWAA2026051992755

## Discrepancy

ACB FLOOR TO SIDEWALL SUPPORT R/H BS 727-767 HAS AREAS OF CORROSION.  REMOVED AND REPLACED SIDEWALL SUPPORT BS 727 TO 767, RBL 24, WL 158 IAW SRM 51-40-02-0G-0 AND DWG 146A7502, REV -.  REJECTION OF STEP 6 ITEM 3: FLOOR TO SIDEWALL SUPPORT AT RBL 24 HAS 1EA BAD RIVET AT BS 727A, 2EA BAD RIVETS AT BS 727B, 1EA BAD RIVET AT BS 727C, 1EA BAD RIVET AT BS 747, AND 1EA BAD RIVET AT BS 767+1.  REMOVED AND INSTALLED FASTENERS AT BS 727A, 2EA BAD RIVETS AT BS 727B, 1EA BAD RIVET AT BS 727C, 1EA BAD RIVET AT BS 747, AND 1EA BAD RIVET AT BS 767+1 IAW SRM 51-40-02.

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