# SDR SWAA2024112060775

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 2024
- Submitted: November 20, 2024
- Operation: Air carrier
- Aircraft: [N937WN](https://openairdocs.org/aircraft/N937WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36644
- Aircraft time: 50,611 hours, 30,853 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Vapor Barrier
- 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/SWAA2024112060775

## Discrepancy

CENTER WING REAR SPAR VAPOR BARRIER HAS A DIAGONAL 4' CRACK AT 33LBL; BETWEEN 2' TO 6 ' FROM LOWER END.<[01] FOUND ADDITIONAL DAMAGE IN VAPOR BARRIER EXTENDING UPWARDS FURTHER THAN NOTED WRITE UP. REF N/R TTG8Q00X43UL FOR CORRECTIVE ACTION.;[02] FOUND ADDITIONAL DAMAGE IN VAPOR BARRIER EXTENDING UPWARDS FURTHER THAN NOTED WRITE UP. REF N/R TTG8Q00X43UL FOR CORRECTIVE ACTION.

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