# SDR UALA2011110105904

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 31, 2011
- Submitted: November 30, 2011
- Operation: Air carrier
- Aircraft: N413UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 470
- Aircraft time: 59,567 hours, 21,731 cycles
- Engine: Iae V2527A5
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Noisy
- Location: Cabin
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011110105904

## Discrepancy

LOUD AIR LEAK SOUND IN BACK HALF OF CABIN NOT AROUND GALLEY OR DOORS -  ENTIRE FLIGHT.  DURING TROUBLESHOOTING CONFIRMED AIR NOISE AND FOUND A AMBER FAN ECAM WARNING ON THE COND.  A TEST OF THE TEMP CTL HAD A RECIRC FAN 1 OR SPLY FAILURE MSG.  REPLACED FAN 1 RECIRC FILTER.  THE FAULT CLEARED AND NO AIR NOISE NOTED.

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