# SDR HEEA060566

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N4000L](https://openairdocs.org/aircraft/N4000L), registered now
- Make and model: Snias AS350B2
- Aircraft serial: 2873
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Thrust Bearing
- Part number: 704A33633109
- Condition: Damaged
- Location: Main Rotor
- Part time: 2,190 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/HEEA060566

## Discrepancy

BEARINGS BULGING AND BLISTERING.  SERIAL NUMBERS REMOVED ARE 9735, 9736, AND 9746.  REPLACEMENT PART SERIAL NUMBERS ARE 12161, 12173, AND 12113.

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