# SDR SWAA2026061002373

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 2026
- Submitted: June 11, 2026
- Operation: Air carrier
- Aircraft: [N7749B](https://openairdocs.org/aircraft/N7749B), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 36724
- Aircraft time: 50,992 hours, 27,256 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Sill
- 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/SWAA2026061002373

## Discrepancy

CORROSION UPPER MAIN SILL ON UPPER SURFACE LOCATED BTW BS 794 TO 847, STR 18R, WL 198 IN THE AFT CARGO BAY.  REPLACED UPPER MAIN SILL LOCATED BTW BS 794.37 - 847, STR 18R, WL 198 IAW SRM 51-10-02, ITEM 9, AND DWG 146A0080, SHEET 16, REV A, & DWG 146A8111, SHEET 16, REV-.

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