# SDR SWAA2026090160421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2026
- Submitted: September 2, 2026
- Operation: Air carrier
- Aircraft: [N954WN](https://openairdocs.org/aircraft/N954WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36669
- Aircraft time: 49,599 hours, 30,445 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Vapor Barrier
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026090160421

## Discrepancy

CRACK 5 ON VAPOR BARRIER LOC. BS 663 BETWEEN LBL 30 TO LBL 45 AT MAIN WHELL WELL,  REPAIRED VAPOR BARRIER LOC. BS 663 BETWEEN LBL 30 TO LBL 45 AT MAIN WHELL WELL IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. THIS FAULT IS DOCUMENTED ON TTG8Q01DK499.

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