# SDR AALA202507061123

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2025
- Submitted: July 6, 2025
- Operation: Air carrier
- Aircraft: [N765US](https://openairdocs.org/aircraft/N765US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1371
- Aircraft time: 63,309 hours, 40,087 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Vent
- Condition: Leaking
- Location: Zone 100
- Stage of operation: CR
- 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/AALA202507061123

## Discrepancy

AIRCRAFT WAS GROUNDED: PACKS HAS AN OIL SMELL. BELIEVED TO BE COMING FROM PACK 1. MAINTENANCE FOUND COKING ON THE GEARBOX VENT TUBE UNION. MAINTENANCE REPLACED GEARBOX VENT TUBE AND UNION, AND REPLACED ALL ASSOCIATED SEALS ON THE APU AIR/OIL SEPERATOR IAW JOB CARD 26L00021002.

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