# SDR SWAA2023081471298

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2023
- Submitted: August 14, 2023
- Operation: Air carrier
- Aircraft: [N446WN](https://openairdocs.org/aircraft/N446WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29842
- Aircraft time: 63,739 hours, 37,814 cycles
- System (JASC): [5754 · Leading Edge Devices](https://openairdocs.org/jasc/5754)
- Part: Skate Angle
- 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/SWAA2023081471298

## Discrepancy

CRACK LOWER SURFACE OF THE LEADING EDGE SLAT NOSE SKIN AT ACTUATOR RIB SLAT STATION 451.97 SLAT 1 AT LT WING 2023-412898<[01] TOOL USED: ET EQUIPMENT P/N: NORTEC 500D; S/N: N500X12101V022233; DUE DATE: 30-AUG-23;[02] EVALUATED SLAT 1 AND FOUND OUT LIMITS DUE TO CRACK INDICATION WAS CONFIRMED ON FITTING AND SKIN IAW B737-700 SRM 57-42-01-1A-1. SLAT 1 MUST BE REPLACED; SEE FAULT TTG8Q00LXHRF TO REPLACED SLAT 1; SEE INDIVIDUAL SIGN OFF BELOW;[03] EVALUATED SLAT 1 AND FOUND OUT LIMITS DUE TO CRACK INDICATION WAS CONFIRMED ON FITTING AND SKIN IAW B737-700 SRM 57-42-01-1A-1. SLAT 1 MUST BE REPLACED; SEE FAULT TTG8Q00LXHRF TO REPLACED SLAT 1; SEE INDIVIDUAL SIGN OFF BELOW

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