# SDR SWAA2026042882450

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2026
- Submitted: April 28, 2026
- Operation: Air carrier
- Aircraft: N8640D
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 60084
- Aircraft time: 39,846 hours, 19,310 cycles
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- 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/SWAA2026042882450

## Discrepancy

CRACKED RIB NR 8 LOCATED STRUCTURE OF DORSAL FIN ACCESS PANEL 321A.  REPLACED RIB NR 8 LOCATED STRUCTURE OF DORSAL FIN ACCESS PANEL 321A IAW B737-800 SRM 51-40-020-G-0; DWG 174A1008 SHEET 3 REV- AND DWG 174A0103 SHEET 15 REV-.

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