# SDR YENA2024012400080

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2024
- Submitted: January 24, 2024
- Operation: Air carrier
- Aircraft: [N945JT](https://openairdocs.org/aircraft/N945JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 06390
- Aircraft time: 38,214 hours, 7,452 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Part number: 44018005
- Part serial: 11514
- Condition: Odor
- Location: Cabin Air
- Part time: 19,668 hours, 4,176 cycles
- Stage of operation: CR
- 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/YENA2024012400080

## Discrepancy

FLT#620, SAN-BOS. 'STRONG MUSTY CHEMICAL ODOR OBSERVED BY BOTH PILOTS ON DESCENT PASSING THROUGH 18000 FT. PACK 1 SELECTED OFF PER FCOM 1 ODOR ISOLATION PROCEDURE. ODOR DISSIPATED AFTER FIVE MINUTES; REMOVED AND REPLACED OZONE FILTER FOR PACK 1 IAW AMM 21-51-41. OPS CHECK GOOD' NO LEAKS FOUND.'

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