# SDR AALA202205109948

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 8, 2022
- Submitted: May 10, 2022
- Operation: Air carrier
- Aircraft: [N769US](https://openairdocs.org/aircraft/N769US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1391
- Aircraft time: 56,304 hours, 35,689 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Odor
- Location: Zone 100 - Fuse
- Stage of operation: DE
- 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/AALA202205109948

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING DESCENT INTO CLT FLIGHT DECK ODOR DETECTED. MIX OF BURNING RUBBER/ELECTRICAL. ISOLATION ATTEMPTS ALTERNATING PACKS 1 AND 2 OFF THEN ON DID NOT HELP. ODOR IMPROVED AFTER LANDING. MAINTENANCE FOUND THE SOURCE OF THE ODOR WAS THE AVIONICS VENT FILTER AND REPLACED IT PER AMM 21-26-43. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED AND NO ODORS WERE NOTED.

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