# SDR 96ZZZX889

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 7, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N6374N](https://openairdocs.org/aircraft/N6374N), registered now
- Make and model: Cessna 182R
- Registry model: [Cessna 182R](https://openairdocs.org/model/cessna-182r) (OpenAirDocs)
- Aircraft serial: 18267832
- Engine: Cont O470U
- Propeller: Mcauly C2A34C204
- System (JASC): [6110 · Propeller Assembly](https://openairdocs.org/jasc/6110)
- Part: Propeller
- Condition: Vibration
- Location: Stc Prop
- Stage of operation: IN
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX889

## Discrepancy

REMOVED 2-BLADED PROPELLER.  INSTALLED 3-BLADED HARTZELL PROPELLER UNDER STC SA090015.  SPENT HUNDREDS OF MAN HOURS TROUBLESHOOTING EXTREME VIBRATION IN AIRFRAME.  INSTALLED SAME 3-BLADED PROP ON DIFFERENT AIRCRAFT SAME VIBRATION (BAD). REMOVED PROP, RETURNED TO STC HOLDER.  SUBMITTER RECOMMENDED REMOVING THE O470U ENGINE FROM THIS STC.

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