# SDR SWAA2025050657012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2025
- Submitted: May 6, 2025
- Operation: Air carrier
- Aircraft: [N941WN](https://openairdocs.org/aircraft/N941WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36647
- Aircraft time: 50,295 hours, 30,868 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/SWAA2025050657012

## Discrepancy

CRACK ON VAPOR BARRIER LOCATED BS 663 LBL 35 APROX AT MAIN WHEEL WELL COMPARTMENT 2025-243959<[01] TOOL USED CALIPER P/N: 500-197-30; S/N: B20189571; DUE DATE: 06-JUN-25.;[02] TOOL USED . HOT BONDER P/N HCS9200B-AV; S/N 18185781; DUE DATE 22-FEB-26.;[03] TOOL USED: SCALE: P/N: CR5200; S/N: 8343110765; DUE DATE: 24-MAR-26;[04] TOOL USED: SCALE P/N: CR5200 S/N: 8343110878 DUE DATE: 24 MAR 26;[05] TOOL USED ON STEP 12:ULTRASONIC FLAW DETECTOR P/N:EPOCH 650; S/N: 190984811; CAL DUE DATE: 24-FEB-26.;[06] REPAIRED VAPOR BARRIER LOCATED BS 663 LBL 35 APROX AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFF BELOW.;[07] REPAIRED VAPOR BARRIER LOCATED BS 663 LBL 35 APROX AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFF BELOW. RII.

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