# SDR SWAA2025031093375

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2025
- Submitted: March 10, 2025
- Operation: Air carrier
- Aircraft: [N7745A](https://openairdocs.org/aircraft/N7745A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33933
- Aircraft time: 56,037 hours, 29,185 cycles
- System (JASC): [5740 · Wing, Attach Fittings](https://openairdocs.org/jasc/5740)
- Part: Nut Plate
- Condition: Corroded
- Location: Zone 600
- 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/SWAA2025031093375

## Discrepancy

CORROSION LEADING EDGE RAIL NUTPLATE LOCATED OFSS449 AT RT WING 2025-110631<[01] REPLACED RAIL NUTPLATE LOCATED OFSS449 AT RT WING ON LEADING EDGE IAW B737-700 SRM 51-10-02-0G Ï¿½TEM 9 SRM 51-40-02 AND DWG 112A4402-14 SHEET 13 REV <BR>MEASURE OF CORROSION ON RAIL NUTPLATE L: 0.001? NOMINAL THICKNESS 0.040? <BR>TOOL USED: ELECTRONIC CALIPER P/N: 2340A11 S/N: B17120081 DUE DATE: 04-APR-25;[02] CERTIFIED WORK PERFORMED.

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