# SDR SWAA2025123041326

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2025
- Submitted: December 30, 2025
- Operation: Air carrier
- Aircraft: [N7743B](https://openairdocs.org/aircraft/N7743B), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36718
- Aircraft time: 55,721 hours, 29,446 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer Splice
- Condition: Corroded
- Location: Zone 100
- 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/SWAA2025123041326

## Discrepancy

E/E COMPARTMENT STA 360 STGR 28 LT FOUND CORROSION AT STGR SPLICE; ALSO FOUND CORROSION BTWN 28 LT STRINGER AND LOWER SKIN AREA.  REMOVED AND REPLACED STRINGER SPLICES FROM STR 28L BETWEEN BS 357 TO BS 368 IAW SRM 51-40-02 ; DWG:140A9101 REV-.

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