# SDR XGNA20240219001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2024
- Submitted: February 20, 2024
- Operation: Air carrier
- Aircraft: [N577W](https://openairdocs.org/aircraft/N577W), registered now
- Make and model: Beech 58
- Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (OpenAirDocs)
- Aircraft serial: TH375
- Aircraft time: 24,602 hours
- System (JASC): [5511 · Horizontal Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5511)
- Part: Rib
- Part number: 9562001071
- Part serial: 586
- Condition: Cracked
- Location: Zone 300
- Part time: 24,602 hours
- Component: Horizontal Stab, Beech
- Component part number: 96620005623
- Stage of operation: UK
- 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/XGNA20240219001

## Discrepancy

2 3/16-INCH CRACK IN AFT END OF LOWER FLANGE OF INBOARD FORWARD RIB. CRACKED THROUGH FIRST 3 RIVETS THEN, INTO RADIUS OF FLANGE JUST STARTING UPWARD INTO THE WEB OF RIB.

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