# SDR P5CA0701511

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2007
- Submitted: March 1, 2007
- Operation: Air carrier
- Aircraft: [N451PA](https://openairdocs.org/aircraft/N451PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30809
- Aircraft time: 25,714 hours, 4,406 cycles
- Engine: Ge CF680C2*
- Engine time: 25,714 hours, 4,406 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Compressor
- Condition: Damaged
- Location: Nr 3 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0701511

## Discrepancy

DURING TREND MONITORING OF NR 3 ENGINE, A SHIFT IN PARAMETERS WAS NOTICED.  AN INSPECTION ON THE NR 3 ENGINE WAS REQUESTED AND THE AIRCRAFT WAS DIVERTED TO PIK FOR A BORESCOPE INSPECTION.  INSPECTED NR 3 ENGINE AND FOUND 11TH STAGE DAMAGE.  REMOVED AND REPLACED NR 3 ENGINE PER POLAR WORK CARDS P71-00-00-1A/2A, P71-71-002A, P78-34-02-2A, P7200-101, P7100-002.

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