# SDR WX0A2025041132383

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2025
- Submitted: April 11, 2025
- Operation: Air carrier
- Aircraft: [N283NV](https://openairdocs.org/aircraft/N283NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 2920
- Aircraft time: 53,559 hours, 21,615 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Cooler
- Condition: Leaking
- Location: Apu
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2025041132383

## Discrepancy

(AIRCRAFT GROUNDED) ODOR EVENT RETURNED, PERFORMED QRH , PACK 2 DEACTIVATED & ODOR WENT AWAY.  DURING TSHOOTING AMM 49-00-00-200-811-A FOUND OIL IN FCU DRAIN PORT, R & R APU FCU IAW AMM 49-32-11-000-003-A-400-003-A. APU COOLING FAN HAD OIL ON BOTTOM OF UNIT & AROUND DUCTS, R & R CLEANED APU OIL COOLER FAN PER 3.C IN TC 21-000-002. NO LEAKS NOTED INSIDE OIL COOLING FAN. REINSTALLED COOLING FAN IAW AMM 49-52-51-400-002-A. REMOVED & CLEANED APU OIL COOLER FAN PER 3.C IN TC 21-000-002. NO LEAKS NOTED INSIDE OIL COOLING FAN. REINSTALLED COOLING FAN IAW AMM 49-52-51-400-002-A. DURING REPLACEMENT OF FUEL CONTROL UNIT, NOTED OIL WETTING ON OTBD SIDE OF OIL COOLER UNDER WELD. REPLACED APU OIL COOLER IAW AMM 49-91-44.

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