# SDR AALA202510204966

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2025
- Submitted: October 20, 2025
- Operation: Air carrier
- Aircraft: [N587UW](https://openairdocs.org/aircraft/N587UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6236
- Aircraft time: 35,514 hours, 14,727 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: A/C Pack
- Condition: Contaminated
- Location: Zone 100
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202510204966

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO LAX DUE TO THE FLIGHT CREW REPORTING THAT DURING CLIMB THERE WAS AN ELECTRICAL SMELL / PLASTIC BURNING SMELL WITH NO SMOKE VISIBLE BUT FLIGHT ATTENDANTS IN THE BACK CONFIRMED THE ODOR/FUME, AS WELL. THE AIRCRAFT LANDED SAFELY AT LAX AND THE FLIGHT CREW REPORTED THAT ON LANDING, ARFF DETECTED CONTINUED SMOKE EMANATING FROM THE AFT OF THE #1 ENGINE FOR ABOUT 15-20 MINUTES AFTER ENGINE SHUTDOWN. USED APU AIR ON THE GROUND AND THAT AIR SEEMS FINE. **SUPPLEMENTAL REPORT FOR AALA202510168498: MAINTENANCE CHECKED BOTH ENGINES FOR EVIDENCE OF INTERNAL AND EXTERNAL LEAKS WITH NO ISSUES NOTED, ACCOMPLISHED A DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYSTEM PER TASK CARD 26L00021014 WITH NO ODORS NOTED** (CLOSED)

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