# SDR AUS20020344

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2002
- Submitted: May 7, 2002
- Operation: General aviation
- Make and model: Bell 47G-3B-1
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (OpenAirDocs)
- Engine: Lyc TVO435B1A
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Hub
- Part number: 471201171
- Condition: Cracked
- Location: Main Rotor
- Part time: 3,285 cycles
- 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/AUS20020344

## Discrepancy

(AUS) MAIN ROTOR HUB CRACKED IN AREA OF BEARING SPINDLE RADIUS. FOUND DURING INSPECTION IAW AD/BELL47/72 A2.

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