# SDR SWAA2022092843382

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2022
- Submitted: September 28, 2022
- Operation: Air carrier
- Aircraft: [N431WN](https://openairdocs.org/aircraft/N431WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29845
- Aircraft time: 66,939 hours, 39,408 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: None
- Condition: Cracked
- Location: R/H Horiz. Stab.
- 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/SWAA2022092843382

## Discrepancy

LEADING EDGE PANEL RIB ASSY. #4; CRACK NOTED AT RIVET HOLE (DOT 223-HLE004). / [01] REMOVED RIB ASSY #4 AT LEADING EDGE PANEL AS PER B737-700 SRM 51-40-02-0G-0.;[02] LOCATED AND DRILLED NEW RIB ASSY #4 AT LEADING EDGE PANEL AS PER B737-700 SRM 51-40-05-0G-0; DWG # 186A1001.;[03] VERIFIED STEPS 1 AND 2. OK TO INSTALL NEW RIB ASSY # 4.;[04] INSTALLED NEW RIB ASSY #4 AT RT HORIZONTAL STABILIZER LEADING EDGE PANEL AS PER B737-700 SRM 51-40-02-0G-0; DWG # 186A1001.;[05] REMOVED AND REPLACED RIB ASSY #4 AT RT HORIZONTAL STABILIZER LEADING EDGE PANEL AS PER B737-700 SRM 51-40-02-0G-0; DWG # 186A1001.;[06] VERIFIED STEPS 4 AND 5.

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