# SDR SWAA2023061647396

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2023
- Submitted: June 16, 2023
- Operation: Air carrier
- Aircraft: [N437WN](https://openairdocs.org/aircraft/N437WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29832
- Aircraft time: 66,985 hours, 39,591 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 600 Right Win
- 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/SWAA2023061647396

## Discrepancy

RIGHT WING LEADING EDGE STRUCTURE; END RIB ASSY. STRAKELET I/B FIXED L/E (FRAME) CRACK NOTED.<[01] REMOVED AND REPLACE FRAME AT R/H L/E END RIB AS PER REF B737 SRM 51-40-02-0G-0 AND DWG# 116A3010;[02] REMOVED AND REPLACE FRAME AT R/H L/E END RIB AS PER REF B737 SRM 51-40-02-0G-0 AND DWG# 116A3010 AND DWG 116A3310;[03] VERIFIED; STEP # 2.

---
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.