# SDR SWAA2025010658389

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2024
- Submitted: January 6, 2025
- Operation: Air carrier
- Aircraft: [N8621A](https://openairdocs.org/aircraft/N8621A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36917
- Aircraft time: 36,708 hours, 17,583 cycles
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Condition: Cracked
- Location: Zone 300
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025010658389

## Discrepancy

R/H HORIZONTAL STAB LEADING EDGE (341B) HAS CRACKED RIB AT LE STA 151.75 (MARKED)<[01] REMOVED AND REPLACED RIB P/N 186A1401-2 AT R/H HOR. STAB. LE STA. 151.75 IAW SRM 51-40-02-0G-0 AND DWG. 156A1001; REV. A.;[02] VERIFIED CORRECTIVE ACTION 1

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