# SDR SWAA2025052956907

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2025
- Submitted: May 29, 2025
- Operation: Air carrier
- Aircraft: [N291WN](https://openairdocs.org/aircraft/N291WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32539
- Aircraft time: 58,271 hours, 34,957 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Vapor Barrier
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: U
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025052956907

## Discrepancy

CRACK VAPOR VARRIER LOCATED BS 663.75 AND RBL 31 AT MAIN WHEEL WELL COMPARTMENT 2025-274191 <[01]. TOOL USED: CALIPER: P/N: 500-196-30; S/N: A23048253; DUE DATE : 05-JUN-25; [02] TOOL USED: HOT BONDER P/N: HCS9200B; S/N:15102320; 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: 91847; S/N: AE-409317; DUE DATE: 29-JUN-25.; [05] ON STEP 10: TOOL USED ULTRASONIC EQUIPMENT PN: EPOCH 600; SN: 130547106; DUE DATE: 30 SEP 25; [06] REPAIRED VAPOR BARRIER LOCATED BS 663.75 AND RBL 31 AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFFS BELOW.; [07] REPAIRED VAPOR BARRIER LOCATED BS 663.75 AND RBL 31 AT MAIN WHEEL WELL COMPARTMENT IAW B737-700 SRM 51-70-04-2R-10 REPAIR 10. SEE INDIVIDUAL SIGNOFFS BELOW. CERTIFIED AS RII.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.