# SDR 98ZZZX604

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N30HJ](https://openairdocs.org/aircraft/N30HJ), registered now
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 226
- Engine: Garrtt TFE73122B
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Blade
- Part number: 30727121
- Condition: Failed
- Location: Hp Turbine
- Part time: 2,269 hours
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX604

## Discrepancy

DURING CRUISE FLIGHT AT 41,000 FEET, THE RT ENGINE APPARENTLY HAD HP BLADE FAILURE RESULTING IN IN-FLIGHT SHUTDOWN.  OPERATOR DECLARED EMERGENCY AND HAD UNEVENTFUL LANDING AT TUL.  DISASSEMBLY OF ENGINE CONFIRMED THE FAILURE.  LOT NRS 4161, 4191, AND 4266.  NOTE:  SB 72-3494 HAD BEEN C/W AND SETS LIFE LIMIT AT 4,500 HOURS ON THIS PART.

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