# SDR SWAA2022082939019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2022
- Submitted: August 29, 2022
- Operation: Air carrier
- Aircraft: [N261WN](https://openairdocs.org/aircraft/N261WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32517
- Aircraft time: 53,121 hours, 31,580 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Vapor Barrier
- Condition: Cracked
- Location: L/H Wing
- 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/SWAA2022082939019

## Discrepancy

CENTER WING LEFT SIDE VAPOR WEB FIBERGLASS PANEL HAS SMALL CRACK INBOARD OF HYDRAULIC MODULE / [01] MEASUREMENTS[13] SUMMARY=PERFORMED VISUAL INSPECTION AND PERFORMED TAP TEST; FOUND SMALL 5' CRACK AT LBL 45' AND CONTAMINATION ON SURFACE OF VAPOR BARRIER ; NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 3 AND 5 CLEANED AND PREPARED DAMAGE AREAS FOR DRY OUT; STOP DRILL CRACKS AS PER B737 SRM 51-70-04-2R-10 PERFORMED DRY OUT ON L/H VAPOR BARRIER; FOUND NO WATER AS PER B737 SRM 51-70-04-2R-10 REPAIRED SMALL CRACK DAMAGE ON L/H VAPOR BARRIER WITH A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-10; MATERIALS USED PO#1690463 AND PO#1778994 PERFORMED TAP TEST ON REPAIRED AREA OF VAPOR BARRIER; FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION 5 LOCATED AND DRILLED HOLES THAT WERE COVERED BY REPAIR AT VAPOR WEB AS PER B 737-7 SRM51-40-05-0G-0 APPLIED TOPCOAT ON LEFT SIDE VAPOR WEB FIBERGALSS PANEL REF B 737 AMM 51-21-81-370-801;[14] VERIFIED AMT STEP 13.;[15] VERIFIED AMT STEP 13.;[16] VERIFIED AMT STEP 13. RII

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