# SDR SWAA2023020994117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2023
- Submitted: February 10, 2023
- Operation: Air carrier
- Aircraft: N407WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29817
- Aircraft time: 71,833 hours, 42,592 cycles
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Support
- Condition: Cracked
- Location: Zn 100 Fus Lower
- 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/SWAA2023020994117

## Discrepancy

MAIN CABON CENTER WING BOX FLOOR SUPPORT BREAK CRACKED @ RBL-1 STA 540 WATER LINE 182<[01] REMOVED CABIN FLOOR PANEL 231UF FOR ACCESS AS PER 53-21-00-000-801.;[02] REMOVED MAIN CABIN CENTER WING FLOOR SUPPORT BREAK AT RBL-1 STA-540 IN REFERENCE B-737-700 SRM 51-40-02-0G-0.;[03] LOCATED AND DRILLED NEW FLOOR SUPPORT BREAK IN ACCORDANCE WITH B-737-700 SRM 51-40-05-0G-0.;[04] VERIFIED LOCATED AND DRILLED.<BR>OK TO INSTALL;[05] INSTALLED NEW FLOOR SUPPORT BREAK IN REFERENCE B-737-700 SRM 51-40-02-0G-0.;[06] VERIFIED INSTALLATION. <BR>OK TO INSTALL PANEL;[07] INSTALLED CABIN FLOOR PANEL 231UF AS PER B-737-700 AMM 53-21-00-400-801.;[08] VERIFIED INSTALLATION

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