# SDR C2XA09CL051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2009
- Submitted: April 27, 2009
- Operation: Air carrier
- Aircraft: N17928
- Make and model: Emb EMB-145EP
- Registry model: [EMB EMB-145EP](https://openairdocs.org/model/embraer-emb-145ep) (OpenAirDocs)
- Aircraft serial: 145007
- Aircraft time: 24,542 hours, 22,802 cycles
- Engine: Rroyce AE3007A1P
- Engine time: 18,554 hours, 14,819 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Turbine Wheel
- Part number: 23069438
- Part serial: MM155995
- Condition: Cracked
- Location: Nr 1 Engine
- Part time: 18,554 hours, 14,819 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/C2XA09CL051

## 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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