# SDR AU990351

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Engine: Garrtt TFE73122B
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Turbine
- Part number: 30727322
- Condition: Failed
- Location: Rt Engine
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU990351

## Discrepancy

(AUS) RIGHT ENGINE TURBINE FIR TREE ROOT FAILURE RESULTED IN TURBINE BLADE LOSS.  EXTENSIVE FOD AND OUT OF BALANCE DAMAGE TO HIGH PRESSURE AND LOW PRESSURE TURBINE ASSEMBLIES.

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