# SDR AALA202607060248

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2026
- Submitted: July 6, 2026
- Operation: Air carrier
- Aircraft: [N420AN](https://openairdocs.org/aircraft/N420AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 9584
- Aircraft time: 22,078 hours, 6,041 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Warning
- Condition: Illuminated
- Location: Apu
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202607060248

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO LAX DUE TO THE FLIGHT CREW REPORTING THAT SHORTLY AFTER TAKEOFF AN APU FIRE WARNING LIGHT ILLUMINATED. THE FLIGHT CREW ACCOMPLISHED THE PROCPROCEDURE AND LANDED SAFELY AT LAX WITHOUT FURTHER INCIDENT.  (OPEN)

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