# SDR C2XA09CL043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2009
- Submitted: April 13, 2009
- Operation: Air carrier
- Aircraft: [N13992](https://openairdocs.org/aircraft/N13992), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145284
- Aircraft time: 21,553 hours, 16,020 cycles
- Engine: Rroyce AE3007A1P
- Engine time: 20,171 hours, 15,191 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Turbine Wheel
- Part number: 23069438
- Part serial: MM155879
- Condition: Cracked
- Location: Nr 1 Engine
- Part time: 20,171 hours, 15,191 cycles
- Stage of operation: IN
- How discovered: U
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA09CL043

## Discrepancy

DURING COMPLIANCE OF SB AE3007A-72-368 ON THE NR 1 ENGINE A CRACK INDICATION OF THE 2ND STAGE HIGH PRESSURE TURBINE WHEEL WAS FOUND WHILE PERFORMING THE ULTRASOUND INSPECTION.  THE NR 1 ENGINE WAS REPLACED.

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