# SDR SWAA2026060196343

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2026
- Submitted: June 2, 2026
- Operation: Air carrier
- Aircraft: [N477WN](https://openairdocs.org/aircraft/N477WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33988
- Aircraft time: 72,345 hours, 43,352 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/SWAA2026060196343

## Discrepancy

CRACK INSPAR RIB LOCATED STAB STA 120.30 AND 28 INCH FROM FRONT SPAR AT LT HORIZONTAL STABILIZER.   PERFORMED PERMANENT REPAIR ON INSPAR RIB LOCATED STAB STA 120.30 AND 28 INCH FROM FRONT SPAR AT LT HORIZONTAL STABILIZER IAW SRM 55-10-09-2R- 4 REPAIR 4.

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