# SDR SWAA2021083105535

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2021
- Submitted: August 31, 2021
- Operation: Air carrier
- Aircraft: [N965WN](https://openairdocs.org/aircraft/N965WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36677
- Aircraft time: 32,936 hours, 20,041 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Cracked
- Location: Bs 540
- 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/SWAA2021083105535

## Discrepancy

CRACKED FLOOR SUPPORT AT B.S. 540 B.L. 0 - L.B.L. 24.5; W.L. 208.1. ; / [01] NO LIMITS FOR CRACKS TO P/N 143A5240-33. REPAIR BY REPLACEMENT. IAW SRM CH 51-10-02 REMOVED DAMAGED SUPPORT IAW SRM CH 51-40-02 LOCATED AND DRILLED NEW SUPPORT IAW SRM CH 51-40-05. OK TO INSTALL.; [02] VERIFIED NO LIMITS FOR CRACKS TO P/N 143A5240-33. REPAIR BY REPLACEMENT. IAW SRM CH 51-10-02 REMOVED DAMAGED SUPPORT IAW SRM CH 51-40-02 LOCATED AND DRILLED NEW SUPPORT IAW SRM CH 51-40-05. OK TO INSTALL.; [03] INSTALLED SUPPORT AT BS 540 BL-0 THROUGH LBL 24.5 WL 208 IAW SRM CH 51-40-02. AND DRAWING # 143A0060 ID. 36; [04] VERIFIED INSTALLATION OF FLOOR SUPPORT AT BS 540 BL-0 THROUGH LBL 24.5 WL 208 IAW SRM 51-40-02; AND DRAWING # 143A0060 ID. 36; [05] VERIFIED JOB COMPLETE OF REPLACEMENT OF FLOOR SUPPORT AT BS 540 BL-0 THROUGH LBL 24.5 WL 208 IAW SRM 51-40-02; AND DRAWING # 143A0060 ID. 36

---
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.