# SDR SWAA2023121530889

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2023
- Submitted: December 15, 2023
- Operation: Air carrier
- Aircraft: [N947WN](https://openairdocs.org/aircraft/N947WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36924
- Aircraft time: 43,911 hours, 26,784 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Panel
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 500 Left Wing
- 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/SWAA2023121530889

## Discrepancy

LH WING INBOARD FIXED LEADING EDGE LOWER SKIN PANEL AT WS 158.25 HAS A CRACK IN LEADING EDGE OF THE PANEL THAT IS APPROXIMATELY 0.400 INCH LONG.<[01] CRACK VERIFIED PER BOEING NDT PART 6; 51-00-00 PROCEDURE 23. END LOCATED AND MARKED;[02] INSPECTED PER SRM 57-41-01 .. REF DRAWING 116A2132. DETERMINED TO BE A PRODUCTION BUTT JOINT WITH NDT CRACK INDICATING JOINT. NO ACTION REQUIRED. .

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