# SDR SWAA2024050974466

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2024
- Submitted: May 9, 2024
- Operation: Air carrier
- Aircraft: [N923WN](https://openairdocs.org/aircraft/N923WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36627
- Aircraft time: 52,310 hours, 31,812 cycles
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- Part: Rib
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 300 Stabilize
- 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/SWAA2024050974466

## Discrepancy

DORSAL FIN PANEL 321A #1 RIB INTERNAL AREA HAS CRACKER. DORSAL FIN (PANEL 321A) #1 RIB (INTERNAL) CRACKED.<[01] REMOVED AND REPLACED CRACK RIB #1 AT DORSAL FIN 321A; REF. SRM 51-40-02-0G-0 AND DRAWING 174A1003;[02] VERIFIED REMOVED AND REPLACED CRACK RIB #1 AT DORSAL FIN 321A.

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