# SDR SWAA2023121319518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2023
- Submitted: December 13, 2023
- Operation: Air carrier
- Aircraft: [N454WN](https://openairdocs.org/aircraft/N454WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29851
- Aircraft time: 64,962 hours, 38,713 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 300 Stabilize
- 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/SWAA2023121319518

## Discrepancy

CRACK ON RIB LOCATED ON LE STA 105.26 AT LEADING EDGE AT RT HORIZONTAL STABILIZER 2023-689305<[01] REPLACEED RIB AND NEW FASTENERS LOCATED ON LE STA 105.26 AT LEADING EDGE AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 51-40-02 AND DWG 186A1001 SHEET 10 REV:A AND SRM 51-10-02 STEP 9. SEE INDIVIDUAL SING-OFFS BELOW;[02] CERTIFIED STEP 1 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.