# SDR HAIHEEA9471

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N107X](https://openairdocs.org/aircraft/N107X), registered now
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 33113
- System (JASC): [7210 · Turbine Engine Reduction Gear](https://openairdocs.org/jasc/7210)
- Part: Gearbox
- Part number: 3024780
- Condition: Clutch Slip
- Location: Combining Box
- Part time: 8,679 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HAIHEEA9471

## Discrepancy

GEARBOX CLUTCH MISENGAGEMENT WITHOUT AUDIBLE OR PHYSICAL (HELICOPTER JOLT) INDICATIONS.  DURING START IT SLIPPED AT 20% N1 ENGAGED AT 30% N1 MOMENTARILY SLIPPED AT 50% N1.

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