# SDR SWAA2025042321200

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2025
- Submitted: April 23, 2025
- Operation: Air carrier
- Aircraft: [N570WN](https://openairdocs.org/aircraft/N570WN), registered now
- Make and model: Boeing 737-7CT
- Registry model: [Boeing 737-7CT](https://openairdocs.org/model/boeing-737-7ct) (OpenAirDocs)
- Aircraft serial: 33657
- Aircraft time: 69,365 hours, 36,273 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Scuff Plate
- Condition: Cracked
- 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/SWAA2025042321200

## Discrepancy

AFT CARGO COMPARTMENT; AFT CORNER SCUFF PLATE IS CRACKED. <[01] WELDED THE CORNER SCUFF PLATE USING ER4043 FILLER ROD LOT NUMBER 1594362-1 PER SRM 53-60-15-2R-1 PARAGRAPH 4.B.(4). REFERRED TO BAC5975 EQUIPMENT USED; WELDING MACHINE ID# E10583 CAL DUE DATE 01/2026. SANDED THE REWORKED SURFACES AND EDGES OF THE CORNER SCUFF PLATE TO GET A SURFACE ROUGHNESS OF 125RA OR SMOOTHER PER SRM 53-60-15-2R-1 PARAGRAPH 4.B.(5). APPLIED PROTECTIVE FINISHES IAW SOPM 20-41-02.; [02] VERIFIED CORRECTIVE ACTION 1.

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