# SDR 2023F00219

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2023
- Submitted: July 7, 2023
- Operation: General aviation
- Aircraft: [N379AZ](https://openairdocs.org/aircraft/N379AZ), registered now
- Make and model: Boeing 767323
- Aircraft serial: 25200
- Engine: Ge CF680C2B6
- Engine time: 113,930 hours, 19,426 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Drive Shaft
- Part number: 9372M84P02
- Condition: Grooved
- Location: Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2023F00219

## Discrepancy

ENGINE WAS REMOVED DUE TO END OF LEASE AND TRANSPORTED TO ENGINE SERVICE FACILITY FOR OVERHAUL. ACCORDING TO THE ENGINE TEARDOWN REPORT A LINE INSPECTOR FOUND A BOLT BETWEEN THE RADIAL DRIVE SHAFT (RDS) AND THE FAN FRAME. THE BOLT HAS CAUSED MAJOR DAMAGE TO THE RDS DURING ENGINE OPERATION. THE DAMAGE IS A GROOVE, APPROX. 4,25 MM DEEP. THE INVESTIGATION IS ON-GOING, BUT IT IS APPEARS TO BE A DOD. PLEASE CONTACT JHUTTU@GATELESIS OR ILOUKKOLA@GATELESIS.COM FOR FURTHER INFORMATION.

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