# SDR SWAA2025041415507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 22, 2025
- Submitted: April 14, 2025
- Operation: Air carrier
- Aircraft: [N212WN](https://openairdocs.org/aircraft/N212WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32485
- Aircraft time: 65,820 hours, 39,654 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/SWAA2025041415507

## Discrepancy

CORROSION ON ACB LOWER MAIN SILL AT STA 787+7 TO STA 787+14; 787+16.5; AND 787+18; RBL18; WL152<[01] REMOVED AND REPLACED ACB LOWER MAIN SILL WEB BS 787+6 TO BS 847 RBL18; WL152 IAW SRM 51-40-02 AND DWG# 146A8120 ID:0031 REV: - AND DWG# 146A8121 ID:0005 REV: -;[02] VERIFIED ACTION 1.

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