# SDR AALA201811289018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2018
- Submitted: November 29, 2018
- Operation: Air carrier
- Aircraft: [N667AW](https://openairdocs.org/aircraft/N667AW), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1710
- Aircraft time: 58,541 hours, 22,123 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Heat Exchanger
- Part number: 754C000001
- Part serial: 8121251835
- Condition: Faulty
- Location: A/C Pack
- Part time: 35,573 hours, 14,156 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201811289018

## Discrepancy

DESCENDING THROUGH 8000', A STRONG ODOR OF BURNING PLASTIC.  NO SMOKE,  10 MINUTES LATER THE ODOR DIMINISHED.   FLIGHT ATTENDANTS REPORTED ODOR  IN CABIN, STRONGEST IN MID CABIN. FOUND SOF COMING FROM LT PACK COMPONENTS.  PARTIAL WORK ACCOMPLISHED-ACCOMPLISHED J/C 26L00021001  SOF INITIAL TROUBLESHOT  AND J/C 26L00021004 CONTAMINATION OF ENVIRONMENTAL CONTROL SYSTEM.  REPLACED THE LEFT PACK COMPONENTS.  HEAT EXCHANGER SEPARATED AND FOUND DIFFUSER DRY ROTTED.

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