# SDR SWAA2023061449378

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2023
- Submitted: June 14, 2023
- Operation: Air carrier
- Aircraft: [N288WN](https://openairdocs.org/aircraft/N288WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36611
- Aircraft time: 51,345 hours, 30,884 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Angle
- Condition: Cracked
- Location: Zn 100 Fus Lower
- 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/SWAA2023061449378

## Discrepancy

CRACK INDICATIONS OBTAINED FROM OPEN FASTENER HOLES AT LH VAPOR BARRIER UPPER ATTACH ANGLE VERTICAL FLANGE AT LBL 7;23;24;29 30;31 & 41. ALSO; CRACK FOUND AT LBL 41. CRACK LENGTH : 0.718' CRACK INDICATIONS OBTAINED FROM OPEN FASTENER HOLES AT LH VAPOR BARRIER UPPER ATTACH ANGLE VERTICAL FLANGE AT LBL 7232429 3031 & 41. ALSO CRACK FOUND AT LBL 41. CRACK LENGTH : 0.718&#34;<[01] REMOVED & REPLACED LT ATTACHED ANGLE OF VAPOR BARRIER WEB; AS PER SRM 51-40-02 AND DWG 111A1000;[02] (RII) VERIFIED STEP 1

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