# SDR AWXA200500757

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2005
- Submitted: June 28, 2005
- Operation: Air carrier
- Aircraft: N644AW
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 317
- Aircraft time: 41,686 hours, 17,852 cycles
- Engine: Iae V2500A1
- Engine time: 30,251 hours, 12,897 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Compressor
- Condition: Dirty
- Location: Nr 1 Engine
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200500757

## Discrepancy

ODOR DETECTED.  DURING FLIGHT, PACKS CREATING GYM SOCK ODOR WITH PASSENGERS COMPLAINING. MAINTENANCE OPERATED PACKS WITH APU BLEED AIR AND ENGINE BLEED AIR.  DISCOVERED ODOR COMING FROM NR 1 ENGINE BLEED AIR SOURCE, ABOVE IDLE.  INSPECTED NR 1 ENG AND UNABLE TO FIND OIL LEAK.  FOUND BLACK SUBSTANCE PRESENT AT STAGE 3 HPC.  SUSPECT VSV LUBRICANT.  PERFORMED COMPRESSOR WASH OF NR 1 ENG IAW AMERICA WEST AIRLINES (AWA) TASK CARD S5M72303.  ALSO, REPLACED NR 1 AND NR 2 OZONE FILTERS DUE TO CONTAMINATION FROM NR 1 ENG BLEED AIR, IAW AWA TASK CARD S2C21301.  OPERATIONAL CHECKS GOOD, NO ODOR PRESENT WHEN PACKS RUNNING OFF OF NR 1 ENG BLEED AIR SOURCE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.