# SDR ASOA2019062094032

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 19, 2019
- Submitted: June 21, 2019
- Operation: Air carrier
- Aircraft: [N13978](https://openairdocs.org/aircraft/N13978), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145180
- Aircraft time: 46,309 hours, 35,117 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 8152403
- Part serial: 2004080095
- Condition: Failed
- Location: Nr 2
- Part time: 11,278 hours, 10,049 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: E, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA2019062094032

## Discrepancy

FLIGHT 4390 THE CREW REPORTED THAT A BANG WAS HEARD BY A PASSENGER NEAR ROW 8-9 AND THE CABIN FILLED WITH A FOG TYPE OF SMOKE THAT NEVER REACHED THE COCKPIT. THE AIRCRAFT LANDED WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT AND REMOVED AND REPLACED THE NUMBER TWO (#2) ACM AND ACM EXHAUST DUCT, OPERATIONALLY TESTED WITH NO DEFECTS NOTED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.

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