# SDR AALA202111123530

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2021
- Submitted: November 12, 2021
- Operation: Air carrier
- Aircraft: [N124US](https://openairdocs.org/aircraft/N124US), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1314
- Aircraft time: 60,397 hours, 29,678 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 38007081
- Part serial: P3799
- Condition: Odor
- Location: Zone 100
- Part time: 31,703 hours, 20,062 cycles
- Stage of operation: DE
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202111123530

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING DECENT BELOW 10,000' FUME ODOR DIRTY SOCKS STRONG IN AFT CABIN SLIGHT IN FORWARD CABIN / FLIGHT DECK. AFTER LANDING TURNED  #1 AND #2 PACKS ALONG WITH #1 AND #2 BLEED OFF AND SMELL DISSIPATED. MAINTENANCE ISOLATED SOURCE OF ODOR TO THE APU.   (OPEN)

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