# SDR AALA202309292519

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2023
- Submitted: September 29, 2023
- Operation: Air carrier
- Aircraft: [N972UY](https://openairdocs.org/aircraft/N972UY), registered now
- Make and model: Airbus A320*
- Aircraft serial: 4123
- Aircraft time: 46,320 hours, 17,482 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: O-Ring
- Part number: AS3209035
- Condition: Leaking
- Location: Zone 100 - Fuse
- 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/AALA202309292519

## Discrepancy

AIRCRAFT WAS GROUNDED: ON DESCENT DIRTY SOCK ODOR.ON FLIGHT DECK AND CABIN. MAINTENANCE FOUND THE APU FUEL CONTROL UNIT TO APU LUBE MODULE UNIT INTERFACE O-RING LEAKING OIL AND REPLACED IT PER AMM 49-32-11. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ODORS NOTED.

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