# SDR 96ZZZX561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N707WR](https://openairdocs.org/aircraft/N707WR), registered now
- Make and model: Aerosp AS 355F1
- Registry model: [Aerosp AS 355F1](https://openairdocs.org/model/aerospatiale-as-355f1) (OpenAirDocs)
- Aircraft serial: 7239
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Thrust Bearing
- Part number: 704A33633109
- Condition: Blistered
- Location: M/R
- Part time: 775 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/96ZZZX561

## Discrepancy

THE MAIN ROTOR SPHERICAL THRUST BEARINGS HAVE BEEN MONITORED IN SERVICE ON THIS AIRCRAFT DUE TO THE WEAR OF THE ELASTOMER MATERIAL.  THESE BEARINGS HAVE A HISTORY OF A SHORT LIFE IN RELATIONSHIP TO THEIR PUBLISHED LIFE LIMIT OF 6,400 HOURS.

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