# SDR SWAA2024053177681

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2024
- Submitted: May 31, 2024
- Operation: Air carrier
- Aircraft: [N470WN](https://openairdocs.org/aircraft/N470WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33860
- Aircraft time: 66,313 hours, 39,674 cycles
- System (JASC): [5740 · Wing, Attach Fittings](https://openairdocs.org/jasc/5740)
- Part: Nut Plate
- Part number: UNKNOWN
- Condition: Cracked
- Location: Lt Wing Le
- 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/SWAA2024053177681

## Discrepancy

CRACK INTERNAL CAVITY LEADING EDGE ON RAIL NUTPLATE LOCATED OFSS632 AT LT WING 2024-270037<[01] REPLACED INTERNAL CAVITY LEADING EDGE RAIL NUTPLATE LOCATED OFSS632 AT LT WING . IAW B737-700 SRM 51-40-02; DWG: 112A4402 SHEET: 14 REV:- AND IAW B737-700 SRM 51-10-02 STEP 9 ITEMS A.;[02] CORRECT STEP 1: REPLACED INTERNAL CAVITY LEADING EDGE RAIL NUTPLATE LOCATED OFSS632 AT LT WING . IAW B737-700 SRM 51-40-02; DWG: 112A4402 SHEET: 14 REV:- AND IAW B737-700 SRM 51-10-02 STEP 9 ITEMS A. MEASURE OF CRACK L:0.445' TOOL USED DIGITAL CALIPER P/N: 500-197-30<BR>DUE DATE 21-NOV-2024;[03] CORRECT STEP 2: REPLACED INTERNAL CAVITY LEADING EDGE RAIL NUTPLATE LOCATED OFSS632 AT LT WING . IAW B737-700 SRM 51-40-02; DWG: 112A4402 SHEET: 14 REV:- AND IAW B737-700 SRM 51-10-02 STEP 9 ITEMS A. MEASURE OF CRACK L:0.445' TOOL USED DIGITAL CALIPER P/N: 500-197-30<BR>DUE DATE 21-NOV-24;[04] REPLACED INTERNAL CAVITY LEADING EDGE RAIL NUTPLATE LOCATED OFSS632 AT LT WING . IAW B737-700 SRM 51-40-02; DWG: 112A4402 SHEET: 14 REV:- AND IAW B737-700 SRM 51-10-02 STEP 9 ITEMS A. MEASURE OF CRACK L:0.445' TOOL USED DIGITAL CALIPER P/N: 500-197-30<BR>DUE DATE 21-NOV-24

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