# SDR HEEA072025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2001
- Submitted: April 18, 2001
- Operation: General aviation
- Aircraft: N6559Z
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 36019
- Aircraft time: 7,811 hours
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Hub
- Part number: 412010100193FM
- Part serial: AAD00020
- Condition: Vibration
- Location: Main Rotor
- Stage of operation: IN
- How discovered: C
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA072025

## Discrepancy

BLUE SPINDLE CAUSING VIBRATION. REPLACED WITH SERVICEABLE ASSY.

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