# SDR SWAA2022052408175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2022
- Submitted: May 24, 2022
- Operation: Air carrier
- Aircraft: [N925WN](https://openairdocs.org/aircraft/N925WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36630
- Aircraft time: 46,249 hours, 27,795 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Vapor Barrier
- Condition: Cracked
- Location: Center 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/SWAA2022052408175

## Discrepancy

L/H STA 663 VAPOR BARRIER CRACK @ LBL 45 / [01] MEASUREMENTS;[02] CLEANED VAPOR BARRIER FOR REPAIR; STOP DRILL CRACK; PERFORMED DRY OUT ;FOUND NO WATER AS PER B737 SRM 51-70-04-2R-10;[03] VERIFIED STEPS 1 AND 2 AND OK TO INSTALL REPAIR;[04] REPAIRED BOTH SIDES OF L/H VAPOR BARRIER WITH A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-10; MATERIALS USED PO#1690463 AND PO# 1753794;[05] PERFORMED TAP TEST ON REPAIRED AREA ;FOUND NO DELAMINATION AS PER NDT 51-05-01 SECTION (5);[06] RII VERIFIED STEPS 4 & 5;[07] LOCATED AND DRILLED VAPOR BARRIER REF B-737-700 SRM 51-40-05-0G-0;[08] RESTORED FINISH TO L/H VAPOR BARRIER AT STA 663 IAW B 737-7 AMM 51-21-73-370-803 INSTALLATION WILL BE DONE ON TTG8Q00CDSW9.

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