# SDR SWAA2024121658798

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2024
- Submitted: December 16, 2024
- Operation: Air carrier
- Aircraft: [N277WN](https://openairdocs.org/aircraft/N277WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32531
- Aircraft time: 57,239 hours, 34,524 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Web
- Condition: Corroded
- Location: Zn 100 Fus Lower
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2024121658798

## Discrepancy

ACB; FLOOR THRESHOLD WEB HAS CORROSION FROM BS 787+18 TO BS 827+11; RBL 28 WL 160 IN VARIOUS LOCATIONS MARKED.<[01] REMOVED AND REPLACED THRESHOLD WEB FROM BS794.37 TO BS847;IAW SRM 51-40-02 AND DWG#146A8340 REV A.;[02] VERIFIED CORRECTIVE ACTION #1

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