# SDR AALA201803139014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2018
- Submitted: March 19, 2018
- Operation: Air carrier
- Aircraft: [N975UY](https://openairdocs.org/aircraft/N975UY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4935
- Aircraft time: 22,610 hours, 8,371 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Odor
- Location: Zone 100
- Stage of operation: IN
- 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/AALA201803139014

## Discrepancy

AIRCRAFT WAS GROUNDED. CABIN/APU ODOR TROUBLESHOOT. FOUND APU THE SOURCE OF CABIN ODOR. REPLACED HEPA FILTERS. STARTED BOTH ENG(S) AGAIN WITH EXTERNAL PNEUMATIC AIR RAN BOTH PACKS WITH ENGINE BLEED FOR 10-15 MINS, NO CABIN ODOR/FUMES NOTED.

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