# SDR UALA2010052101710

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2010
- Submitted: May 21, 2010
- Operation: Air carrier
- Aircraft: [N220UA](https://openairdocs.org/aircraft/N220UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30223
- Aircraft time: 37,387 hours, 4,637 cycles
- Engine: Pwa PW4090
- Engine time: 33,311 hours, 4,385 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Blade
- Condition: Cracked
- Location: Hpt
- Stage of operation: IN
- How discovered: B
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010052101710

## Discrepancy

HPT 2ND STG BLADE HAS AN AXIAL CRACK IN AREA B, FROM THE T/E COOLING SLOTS IN TOWARDS MIDDLE OF BLADE.   REPLACE NR 1 ENGINE REF EG3710-1.

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