# SDR SWAA2022013150005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2017
- Submitted: February 1, 2022
- Operation: Air carrier
- Aircraft: [N448WN](https://openairdocs.org/aircraft/N448WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33721
- Aircraft time: 48,711 hours, 28,508 cycles
- System (JASC): [5713 · Wing, Longeron/Stringer](https://openairdocs.org/jasc/5713)
- Part: Stringer
- Part number: 116A453145
- Part serial: 7570841
- Condition: Cracked
- Location: Lt 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/SWAA2022013150005

## Discrepancy

L/H WING I/B FIXED L/E KRAS STA 206.32 FOUND EXISTING CRACK IN ROW 4 STRINGER UPON REMOVAL FOM / REFER TO NON-ROUTINE #36380-5200-0002 DEFECT # X628231 FOR REPLACEMENT OF PART P/N 116A453145 SI# 7570841 'A' TAG #WN5818

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