# SDR 2001UALA00424

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2001
- Submitted: April 12, 2001
- Operation: Air carrier
- Aircraft: [N398UA](https://openairdocs.org/aircraft/N398UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 24673
- Aircraft time: 32,326 hours, 22,238 cycles
- Engine: Ge CFM56*
- Engine time: 38,060 hours, 23,338 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Blade
- Condition: Failed
- Location: Nr 1 Compressor
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001UALA00424

## Discrepancy

NR 1 ENGINE COMPRESSOR STALL. SUPPLEMENTAL DATA UPDATE BORESCOPE INSPECTION REVEALED 7TH STAGE HIGH PRESSURE COMPRESSOR BLADE DAMAGE BEYOND LIMITS.  THE ENGINE WAS REMOVED AND IS BEING SENT TO THE SHOP FOR TEARDOWN AND FURTHER ANALYSIS.

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