# SDR USAA2012123100005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2012
- Submitted: December 31, 2012
- Operation: Air carrier
- Aircraft: [N747UW](https://openairdocs.org/aircraft/N747UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1301
- Aircraft time: 33,094 hours, 21,720 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Heat Exchanger
- Part number: 754A000003
- Part serial: 00318
- Condition: Malfunctioned
- Location: Ac Bay
- Part time: 41,445 hours, 17,276 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012123100005

## Discrepancy

FLIGHT ATTENDANT REPORTED AN ODOR IN CABIN ON TAKEOFF OTHER THAN A DIRTY SOCK ODOR.  MAINTENANCE TROUBLESHOT CABIN AIR QUALITY PER J/C 26L00021001, ACCOMPLISHED J/C'S 26L00021005 FOR LEFT AND RIGHT ENGINES AND ACCOMPLISHED ECS DECONTAMINATION PER J/C 26L00021004.  REMOVED AND REPLACED NR 1 PACK HEAT EXCHANGERS PER AMM 21-52-24-400-001A.  OPS AND LEAK CHECK GOOD.  PERFORMED SATISFACTORY TEST FLIGHT.

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