# SDR USAASA03037

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2003
- Submitted: June 11, 2003
- Operation: Air carrier
- Aircraft: N164UW
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1425
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Controller
- Part number: 342B030000
- Condition: Malfunctioned
- Location: Lt Eng Pylon
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASA03037

## Discrepancy

EN ROUTE PIT-DEN, WHILE IN CRUISE FLIGHT, AT FL350, ECAM MESSAGE 'L WING LEAK' CAME ON, FOLLOWED BY A LOS OF CABIN PRESSURE.  A RAPID DESCENT WAS MADE.  THE FLIGHT DIVERTED TO ORD AND LANDED WITHOUT FURTHER INCIDENT.  AIRCRAFT WAS FERRIED TO PIT FOR MAINTENANCE.  A LEFT ENGINE HIGH PRESSURE VALVE WAS REPLACED FOR T/S PURPOSES.  A LEFT ENGINE PNEUMATIC CONTROL THERMOSTAT WAS REPLACED TO FIX THE PROBLEM.  (M)

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