# SDR YENA2022031100137

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2022
- Submitted: March 11, 2022
- Operation: Air carrier
- Aircraft: [N970JB](https://openairdocs.org/aircraft/N970JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07415
- Aircraft time: 19,896 hours, 6,468 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: None
- Condition: None
- 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/YENA2022031100137

## Discrepancy

FLT#741, BOS-SRQ. 'DURING DESCENT FROM 14000 TO 3000. WE EXPERIENCED A DIRTY SOCK/MUSTY ODOR EVENT (PACKS); PERFORMED T/S IAW AMM 05-50-00 FOUND CAUSE  OF ODOR TO BE PACK 2. SECURED PACK FLOW CONTROL VALVE IAW AMM TASK 21-51-00. MX-4 UPDATED. PLACARD INSTALLED.MCC CHARLIE NOTIFIED '. (SUPPLEMENTAL INFORMATION TO FOLLOW).

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