# SDR CALA2026040615069

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2026
- Submitted: April 6, 2026
- Operation: Air carrier
- Aircraft: [N893UA](https://openairdocs.org/aircraft/N893UA), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 2948
- Aircraft time: 51,578 hours, 27,121 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Fuel Line
- Condition: Leaking
- Location: Apu
- Stage of operation: LD
- 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/CALA2026040615069

## Discrepancy

WHEN PACKS ARE RUNNING ON APU BLEED STRONG FUEL OR EXHAUST SMELL INBD CREW REPOERTED ONLY SMELL WHEN USING THE APU. AFTER TAKEOFF SMELL WENT AWAY. WHEN APU STARTED AGAIN IN EWR SMELL CAME BACK. CONFIRMED STRONG FUEL SMEEL THROUGHT THE CABIN. AND FLIGHT DECK. FOUND APU FUEL CONTROL FUE LINE LOOSE MASS OF FUEL COMING OUT OF THE LINE.FUEL WAS LEAKING FOM INLET (FROM FCU) B NUT. NOTE, NO ACTIVE LEAK NUT RETIGHT ON THE CONTROL FUEL OPT CHECK GOOD.  COMPLETED AMM TASK 21-00-00-615-802-A TO DECONTAMINATE ECS. RAN FOR HALF HOUR AFTER TASK COMPLETION, SMELL DID NOT CONTINUE.

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