# SDR 98ZZZX3843

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N586BH
- Make and model: Bolkms BK117A4
- Aircraft serial: 7129
- Engine: Lyc LTS101650B1
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Rotor Assy
- Part number: 414129001
- Condition: Damaged
- Location: Turbine
- Part time: 282 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/98ZZZX3843

## Discrepancy

SECONDARY DAMAGE DUE TO BEARING FAILURE.  SHAFT GROOVED.  CORE UNIT RETAINED IN PHX BY ASE ENGINEERING FOR FURTHER INVESTIGATION.  REPLACED WITH NEW UNIT, CORRECTED PROBLEM.  PART TOTAL CYCLES: 728.3.

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