# SDR SWAA2022122979009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2022
- Submitted: December 29, 2022
- Operation: Air carrier
- Aircraft: N401WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29813
- Aircraft time: 73,533 hours, 43,472 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Angle
- 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/SWAA2022122979009

## Discrepancy

CRACK ANGLE FLOOR STRUCTURE LOCATED AT BS 695 LBL0 WL 208.1 CENTER SECTION 2022-688143<[01] TOOL USED: DIGITAL CALIPER P/N: 500-196-30; S/N:A21033538; DUE DATE: 25-SEP-23.;[02] REPLACED ANGLE AND FASTENERS ON FLOOR STRUCTURE LOCATED AT BS 695 BL0 WL 208.1 CENTER SECTION IAW B737-700 SRM 51-40-02 AND DRAWING 273A9110; SHEET 3; REV - DRAWING 273A9112-45;[03] CORRECTED STEP 2. REPLACED ANGLE AND FASTENERS ON FLOOR STRUCTURE LOCATED AT BS 695 BL0 WL 208.1 CENTER SECTION IAW B737-700 SRM 51-40-02 AND DRAWING 273A9110; SHEET 3; REV - DRAWING 273A9112 SHEET 30 REV. -;[04] CORRECTED STEP 2. REPLACED ANGLE AND FASTENERS ON FLOOR STRUCTURE LOCATED AT BS 695 BL0 WL 208.1 CENTER SECTION IAW B737-700 SRM 51-40-02 AND DRAWING 273A9110; SHEET 3; REV - DRAWING 273A9112 SHEET 30 REV. -

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.