# SDR AALA202103199012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2021
- Submitted: March 24, 2021
- Operation: Air carrier
- Aircraft: [N669AW](https://openairdocs.org/aircraft/N669AW), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1792
- Aircraft time: 62,603 hours, 24,747 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Cooler
- Part number: 38807991
- Part serial: 981408600278
- Condition: Leaking
- Location: Apu
- Part time: 49,330 hours, 20,643 cycles
- Stage of operation: NR
- 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/AALA202103199012

## Discrepancy

AIRCRAFT WAS GROUNDED: CREW REPORTS MUSTY SMELL LOW AIRFLOW FROM AIR CONDITION PACKS. **SUPPLEMENTAL INFORMATION: FOUND SOURCE OF ODOR EVENT TO BE APU LEAKING OIL. REMOVED AND REPLACED APU OIL COOLER IAW AMM 49-91-44.**

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