# SDR YENA2023005010465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2023
- Submitted: May 1, 2023
- Operation: Air carrier
- Aircraft: [N929JB](https://openairdocs.org/aircraft/N929JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 06031
- Aircraft time: 36,375 hours, 7,061 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: Cooling Fan
- Part number: 36161407
- Part serial: P2990
- Condition: Failed
- Location: 4005km
- Part time: 29,314 hours, 7,444 cycles
- Stage of operation: CR
- 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/YENA2023005010465

## Discrepancy

FLT#673, BOS-AUA. ' ODOR EVENT COMING THROUGH 14,000 FEET TO THE GROUND. REFER TO THE ODOR EVENT WORKSHEET FOR MORE DETAILS; REFER TO LOGPAGE 3725746, ITEM 2 (FOUND APU LEAKING OIL FROM THE COOLING FAN AND THE APU OIL COOLER CONTAMINATED. REMOVED AND REPLACED APU OIL COOLING FAN REF A321 AMM 49-52-51. REF LP 3725747 FOR OIL COOLER REMOVED AND REPLACED. NO LEAKS NOTED THIS CLEARS MDDR. MX-4 UPDATED. PLACARD REMOVED AND MCC NOTIFIED ), AND MDDR# 508794 - BOTH PACKS WERE PLACED ON MEL DUE TO AN ODOR EVENT.

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