# SDR AALA201907079016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2019
- Submitted: July 17, 2019
- Operation: Air carrier
- Aircraft: [N820AW](https://openairdocs.org/aircraft/N820AW), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 1397
- Aircraft time: 59,749 hours, 26,522 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Relief Valve
- Part number: 96821413
- Condition: Damaged
- Location: Apu
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201907079016

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT REPORTS OIL SMELL ON A/C PACKS ON DESENT & AND ON THE GROUND WITH ENGINES & APU BLEED. MAINTENANCE ACCOMPLISHED CARD 26L00021001. DETERMINED APU TO BE SOURCE OF ODOR. FOUND BLOCK ASSEMBLY LEAKING ON APU. ***SUPPLEMENTAL INFORMATION: MAINTENANCE REMOVED AND REPLACED APU PRESSURE RELIEF VALVE IAW AMM. PERFORMED CARD 26L00021004, NO SMELL NOTED THIS TIME.*** (CLOSED)

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