# SDR 96UAL900952

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N424UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 506
- Engine: Iae V2527A5
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Lever Arm
- Part number: 6A3322
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 6,742 hours
- Component: 6A3322
- Stage of operation: CL
- Nature of condition: E
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96UAL900952

## Discrepancy

ON CLIMBOUT PASSING APPROXIMATELY 6,000 FEET A LOUD BANG WAS HEARD AND THE NR 2 ENGINE ROLLED BACK.  ALL INDICATIONS LOOKED GOOD FOR A RELIGHT.  WHEN RELIGHT WAS ATTEMPTED VIBRATION WAS HIGH AND THE RESTART WAS ABORTED.  *S/D*  3 HIGH PRESSURE COMPRESSOR VARIABLE STATOR LEVER ARMS IN THE THIRD STAGE WERE FOUND BROKEN AT THE 3 O'CLOCK LOCATION ALLOWING INDIVIDUAL VANES TO OBSTRUCT THE AIRFLOW THROUGH THE COMPRESSOR CAUSING SEVERE STAGE 4 BLADE FAILURES.  THE LEVER ARM FAILURE IS STILL UNDER INVESTIGATION BY UAL AND THE MANUFACTURER.

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