# SDR SWAA2025030593938

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2025
- Submitted: March 5, 2025
- Operation: Air carrier
- Aircraft: [N278WN](https://openairdocs.org/aircraft/N278WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36441
- Aircraft time: 58,438 hours, 35,196 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Cracked
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025030593938

## Discrepancy

(CUSTOMER REQUEST) MAIN CABIN; FLOOR STRUCTURE SUPPORT HAS CRACK AT STA 540; BL 0 TO RBL 24.75. 2025-94369<[01] REPLACED MAIN CABIN FLOOR STRUCTURE SUPPORT LOCATED AT STA540 BL 0 TO RBL 24.75 IAW B737-700 SRM 51-10-02 ITEM 9 AND DWG# 143A0060 SHEET 46 REV. - SEE INDIVIDUAL SIGN OFF BELOW;[02] REPLACED MAIN CABIN FLOOR STRUCTURE SUPPORT LOCATED AT STA540 BL 0 TO RBL 24.75 IAW B737-700 SRM 51-10-02 ITEM 9 AND DWG# 143A0060 SHEET 46 REV. - SEE INDIVIDUAL SIGN OFF BELOW

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