# SDR SIMA200807904

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2008
- Submitted: March 19, 2008
- Operation: Air carrier
- Aircraft: [N642AE](https://openairdocs.org/aircraft/N642AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145193
- Aircraft time: 19,018 hours, 18,573 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 8152403
- Part serial: 9904020
- Condition: Malfunctioned
- Location: A/C Bay
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200807904

## Discrepancy

ON FLIGHT 3653, CREW REPORTED DURING TAXI OUT WITH APU BLEED SUPPLYING THE PACKS A HAZE IN THE COCKPIT AND CABIN WAS NOTED.  AIRCRAFT REMOVED FROM SERVICE.  REMOVED AND REPLACED LT HEAT EXCHANGER AND LEFT ACM IAW EMB AMM 21-51-02 AND 21-51-03.  OPERATIONAL CHECK GOOD.  AIRCRAFT RETURNED TO SERVICE.

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