# SDR SWAA2022052508625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2022
- Submitted: May 25, 2022
- Operation: Air carrier
- Aircraft: N774SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27882
- Aircraft time: 70,806 hours, 41,985 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/SWAA2022052508625

## Discrepancy

L/H STA 663 VAPOR BARRIER CRACKED AT LBL 10 LOWER CORNER. STOP DRILL CRACK AS PER B737 SRM 51-70-04-2R-10; ACCOMPLISH DRY OUT ON DAMAGE AREA OF L/H VAPOR BARRIER FOUND NO WATER AS PER B737 SRM 51-70-04-2R-0 SECTION 4-D-9; REPAIRED 9' CRACK ON THE L/H VAPOR BARRIER WITH A PERMANENT REPAIR AS PER B737 SRM 51-70-04-2R-10 AND REPAIRED A 6' INTERIM REPAIR IN THE SAME LOCATION .TOTAL CRACK SIZE 15' AS PER B737 SRM 57-10-10-1A-2 SECTION 2-C-4 AT STA 663 LBL 10' LOWER CORNER.PERFORMED TAP TEST ON REPAIRED AREA; FOUND NO DELAMINATION AS PER B737 NDT 51-05-01 SECTION (5);ON THE INTERIM REPAIR DO A VISUAL INSPECTION OF THE REPAIRED AREA AT 1200 FLIGHT CYCLE INTERVALS OR MORE FREQUENTLY AS PER B737 SRM 57-10-10-1A-2 SECTION 2-C-(4);

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