# SDR AALA202401319610

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2024
- Submitted: January 31, 2024
- Operation: Air carrier
- Aircraft: [N789AN](https://openairdocs.org/aircraft/N789AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 30252
- Aircraft time: 89,233 hours, 11,589 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Part number: UNKNOWN
- Condition: Leaking
- Location: Apu
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202401319610

## Discrepancy

AIRCRAFT WAS GROUNDED: UPON START OF APU SMOKE AND FUMES FILLED THE CABIN AND COCKPIT. AIRCRAFT RETURNED TO BCN, LARGE OIL LEAK FOUND IN APU. **SUPPLEMENTAL REPORT WILL BE SUBMITTED.** (OPEN)

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