# SDR YENA2021060800362

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2021
- Submitted: June 8, 2021
- Operation: Air carrier
- Aircraft: [N957JB](https://openairdocs.org/aircraft/N957JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6809
- Aircraft time: 21,260 hours, 6,948 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Stage of operation: DE
- 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/YENA2021060800362

## Discrepancy

FLT 2421, BOS-PBI. DURING SESCENT STRONG DIRTY SOCK SMELL ( PACKS ); REF DEFECT 3024536 ITEM 1, DURING CABIN ODOR T/S STEPS, FOUND NO SIGNS OF PACK 1 BEING SOURCE FOR ODOR EVENTS. APU FOUND TO BE SOURCE DUE TO OIL LEAKAGE FROM INTERNAL SYSTEMS. ECS DECON PERFORMED SACTISFACTORILY. NO ODOR NOTED AFTER DECON WITH BOTH PACKS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.