# SDR SWAA2025042949321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2025
- Submitted: April 29, 2025
- Operation: Air carrier
- Aircraft: [N556WN](https://openairdocs.org/aircraft/N556WN), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 33936
- Aircraft time: 43,601 hours, 25,576 cycles
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Skin
- Condition: Cracked
- Location: Zone 500
- 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/SWAA2025042949321

## Discrepancy

FOUND CRACK ON LEFT WING LOWER WING SKIN WS537.5+4.5-537.5+9 2' FROM SKIN LEADING EDGE<[01] ENTERED LOCATION OF CORROSION IN MEASUREMENTS IN THE N/A FIELDS -WS537.5+4.5-537.5+9; 2' FROM SKIN LEADING EDGE.;[02] CHANGED CORROSION LEVEL 2 TO 3.;[03] CHANGED CORROSION LEVEL 3 TO 2.;[04] REPAIRED IAW SWA EA 25-157-00732 (N556WN - CPZ - REPAIR - LEFT WING - LOWER INSPAR SKIN - CRACK AND CORROSION);[05] VERIFIED REPAIRED IAW SWA EA 25-157-00732 (N556WN - CPZ - REPAIR - LEFT WING - LOWER INSPAR SKIN - CRACK AND CORROSION)

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