# SDR YENA2021101100664

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2021
- Submitted: October 11, 2021
- Operation: Air carrier
- Aircraft: [N923JB](https://openairdocs.org/aircraft/N923JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 05960
- Aircraft time: 30,020 hours, 5,796 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 16054103
- Condition: Failed
- Location: E/E Bay
- Part time: 46,281 hours, 14,174 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/YENA2021101100664

## Discrepancy

AT CRUISE SMELLED ELECTRICAL FUMES AND HEARD SQUEAL. ISOLATED THE BLOWER BY GOING TO OVERRIDE ON EXTRACT. SMELL DISAPATED. THERE WAS SOME VIBRATION NEAR EXTRACT FAN. AFTER LANDING EXTRACT FAN LOUDER ; REMOVED AND REPLACED AVIONICS FAN 18HQ AMM 21-26-51. OPS CHECK GOOD. A/C GOOD FOR SVC

---
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.