# SDR SIMA20130811006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2013
- Submitted: August 21, 2013
- Operation: Air carrier
- Aircraft: [N699AE](https://openairdocs.org/aircraft/N699AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500883
- Aircraft time: 22,125 hours, 18,851 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 8152403
- Part serial: 9906045
- Condition: Failed
- Location: Right
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20130811006

## Discrepancy

CREW REPORTED,  WHEN NR 2 PACK IS RUNNING THERE IS CLUNKING NOISE AND BAD ODOR.  WHEN NR 2 PACK IS TURNED OFF,  NOISE AND ODOR GOES AWAY.   PERFORMED FIM TASK 21-51-00-810-824-A BLOCK 1 THRU 7 AND R & R NR 2 PACK VALVE IAW AMM 21-51-01 AND R & R OVER TEMPERATURE SWITCH IAW AMM 21-51-08.  REMOVED AND REPLACED AIR CYCLE MACHINE IAW AMM 21-51-03-000-801-A AND 21-51-03-400-801-A. OPS CHECKED GOOD. ACFT RETURNED TO SERVICE.

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