# SDR SWAA2022093065348

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2022
- Submitted: September 30, 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): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: None
- Condition: Cracked
- Location: Rh Hor 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/SWAA2022093065348

## Discrepancy

LEADING EDGE PANEL RIB ASSY. #9; CRACK NOTED AT RIVET HOLE (DOT 223-HLE009). RIGHT HORI STAB. / [01] REMOVED RIB ASSY #9 AT RT HORIZONTAL STABILIZER LEADING EDGE PANEL AS PER B737-700 SRM 51-40-02-0G-0.;[02] LOCATED AND DRILLED NEW RIB ASSY #9 AT RT HORIZONTAL STABILIZER LEADING EDGE PANEL AS PER B737-700 SRM 51-40-05-0G-0; DWG # 186A1001.;[03] VERIFIED 1-2. OK TO INSTALL NEW RIB.;[04] MIXED BMS 5-95 SEALANT AT 16:30; 9/1/22. SQUEEZE OUT TIME BY 18:30; 9/1/22.;[05] INSTALLED NEW RIB ASSY #9 AT RT LEADING EDGE PANEL AS PER SRM 51-40-02-0G-0 AND DWG #186A1001.;[06] (FINAL) REMOVED CRACKED #9 RIB ASSY FROM RT HORIZONTAL LEADING EDGE; LOCATED/DRILLED AND INSTALLED NEW RIB ASSY #9 AT RT LEADING EDGE PANEL AS PER SRM 51-40-02-0G-0 AND DWG #186A1001.;[07] VERIFIED AND INSPECTED STEP#4. #5; AND #6. FINAL.

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