# SDR AALA2019032109001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 2019
- Submitted: March 21, 2019
- Operation: Air carrier
- Aircraft: [N991AU](https://openairdocs.org/aircraft/N991AU), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7131
- Aircraft time: 8,147 hours, 3,111 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Dirty
- Location: Recirculation
- Stage of operation: NR
- 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/AALA2019032109001

## Discrepancy

APU BLEED,  CABIN ODOR DURING ALL PHASES OF FLIGHT.  THE AIRCRAFT WAS GROUNDED.  MAINTENANCE ACCOMPLISHED CARD 05-96-70, AND FIM 05-96-70, AND 05-96-71.  FOUND THE RIGHT RECIRULATION FAN CIRCUIT BREAKER TRIPPED.  RESET THE CIRCUIT BREAKER AND CHANGED THE FILTER IAW CARD 1907.  ACCOMPLSHED AN OPS CHECK IAW AMM 21-21-00-710-001-A.  RAN ENGINES,  FULL HOT AND FULL COLD FOR 30 MINUTES. NO ODORS NOTED.

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