# SDR SIMA20190504001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2019
- Submitted: May 6, 2019
- Operation: Air carrier
- Aircraft: [N928AE](https://openairdocs.org/aircraft/N928AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500911
- Aircraft time: 34,581 hours, 29,849 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 8152403
- Part serial: 200106045
- Condition: Seized
- Location: Ac Bay
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20190504001

## Discrepancy

SMOKE IN COCKPIT COMING FROM AIR VENTS LEVEL CRUISE FL 230 FA REPORTED LOUD GRINDING NOISE FROM UNDER WING AREA AROUND SAME TIME AS SMOKE EVENT. C/A-INSPECTED FOUND NUM 1 PACK ACM DAMAGED FAILURE. PERFORMED ETN-EM-72-034 COULDNT DUPLICATE SMOKE IN COCKPIT WHILE RUNNING PACK 2.  REATTACHED DUCT IAW ETN-EM-21-056 CLOSED AND SECURED PANEL. FOUND ACM SEIZED REMOVED AND REPLACED IAW AMM 21-51-03 PERFORMED OPS CHECK IAW AMM 21-51-00-700-802-A OPS CHECK GOOD. FOUND DUAL TEMP CONTROL VLV TO HEAT EXCHANGER DUCT DAMAGED. REMOVED AND REPLACED DUAL TEMP CTRL VLV TO HEAT EXCHANGER DUCT IAW AMM 21-60-01 AND REMOVED AND REPLACED COUPLINGS AND CLAMPS IAW ETN-EM-21-056.OPC AND LEAK CHECK GOOD IAW AMM 21-51-00 MEL ITEM RESTORED.

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