# SDR SWAA2020050145363

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2020
- Submitted: May 1, 2020
- Operation: Air carrier
- Aircraft: [N249WN](https://openairdocs.org/aircraft/N249WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34951
- Aircraft time: 47,864 hours, 28,654 cycles
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- Part: Rib
- Condition: Cracked
- Location: Vertical Stab
- 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/SWAA2020050145363

## Discrepancy

DORSAL FIN #8 RIB ASSY (P/N 174A1008-2) CRACKED AT LH AND R/H SIDES JUST OUTBD OF MOUNT BRACKETS / REMOVED AND REPLACED DORSAL FIN #8 RIB ASSY (P/N 174A1008-2) PER SRM 51-10-02;INSTALLED FASTENERS PER SRM 51-40-02.

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