# SDR SWAA2023041715013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2023
- Submitted: April 17, 2023
- Operation: Air carrier
- Aircraft: [N221WN](https://openairdocs.org/aircraft/N221WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34259
- Aircraft time: 58,906 hours, 34,822 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Condition: Cracked
- Location: Zn 500 Left Wing
- 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/SWAA2023041715013

## Discrepancy

CRACK ANGLE TRAILING EDGE DEFLECTION CONTROL RIB ORSS 270 LT WING 2023-185161<[01] REPLACED ANGLE TRAILING EDGE DEFLECTION CONTROL RIB ORSS 270 LT WING I.A.W B737-700 SRM 51-40-02 AND DWG#115A2930; SHEET 7; REV.-. TOOL USED DIGITAL CALIPER P/N: 500-720-20; S/N: B21015879 AND DUE DATE: 13/DEC/23;[02] TASK COMPLETED

---
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.