# SDR UIEA200700439

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2007
- Submitted: December 3, 2007
- Operation: Air carrier
- Aircraft: [N454PA](https://openairdocs.org/aircraft/N454PA), registered now
- Make and model: Boeing 747-46NF
- Registry model: [Boeing 747-46NF](https://openairdocs.org/model/boeing-747-46nf) (OpenAirDocs)
- Aircraft serial: 30812
- Aircraft time: 23,590 hours, 3,857 cycles
- Engine: Ge CF680C2*
- Engine time: 30,007 hours, 7,366 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Blade
- Part number: 1538M90P12
- Condition: Cracked
- Location: Hpt Rotor
- Part time: 30,007 hours, 7,366 cycles
- Component: Hpt Rotor, Ge
- Component part number: 9255M20G06
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200700439

## Discrepancy

ESN 704330 - HPT STAGE 1 BLADES 68EA FOUND WITH UNDER PLATEFORM CORROSION AND CRACKS.


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