# SDR 2007UALA03895

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2007
- Submitted: October 3, 2007
- Operation: Air carrier
- Aircraft: [N825UA](https://openairdocs.org/aircraft/N825UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 980
- Aircraft time: 30,187 hours, 11,397 cycles
- Engine: Iae V2522A5
- Engine time: 36,097 hours, 13,037 cycles
- System (JASC): [7160 · Engine Air Intake System](https://openairdocs.org/jasc/7160)
- Part: Valve
- Condition: Misrigged
- Location: Nr 1 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA03895

## Discrepancy

ENGINE NR 1 COMPRESSOR STALL IN CRUISE.  MISRIGGED VSV SYSTEM.  ACP CHECKS PER MM 71-00-00 FOUND VSV UNISON RING MISRIGGED AT VGV AND STAGE 5.  ADJ 1 TURN EA, OPS CHECK NORMAL.

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