# SDR SWAA2021011338322

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2020
- Submitted: January 13, 2021
- Operation: Air carrier
- Aircraft: N434WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32454
- Aircraft time: 60,441 hours, 35,783 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floorbeam
- Part number: 273A9111
- Condition: Cracked
- Location: Cabin
- 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/SWAA2021011338322

## Discrepancy

CRACK ANGLE FLOOR STRUCTURE AT BS 693 AND BL 0 CENTER SECTION.  REPLACED ANGLE LOCATED FLOOR STRUCTURE AT BS 693 AND BL 0 CENTER SECTION, IAW SRM B737-700 51-40-02 AND DWG 273A9111 SHEET 4 REV A DUE TO NO FOUND ALLOWABLE DAMAGE LIMITS IN SRM B737-700.  FABRICATED ANGLE FROM BAC1490-2883 PO 2020195975.

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.