# SDR SWAA2021110225452

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2021
- Submitted: November 2, 2021
- Operation: Air carrier
- Aircraft: N230WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34592
- Aircraft time: 53,089 hours, 31,642 cycles
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: None
- Condition: Cracked
- Location: L/H 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/SWAA2021110225452

## Discrepancy

# 4 SLAT NOSE SKIN LOWER SURFACE AT ACTUATOR RIB HAS ONE SMALL CRACK AT HILOCK HOLE ; / [01] PERFORMED HFEC ON SUSPECTED CRACK AT #4 SLAT NOSE SKIN LOWER SURFACE AT HILLOCK HOLE AT ACTUATOR RIB IAW NDTM PART 6;51-00-00 PROCEDURE 23. NO CRACK FOUND.<BR>[NORTEC 600; B/C 166317 ; CALIB.DUE- 10/21]; [02] VERIFIED

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