# SDR 97ZZZX4770

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Emb EMB-120RT
- Registry model: [EMB EMB-120RT](https://openairdocs.org/model/embraer-emb-120rt) (OpenAirDocs)
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 22045402
- Condition: Defective
- Part time: 21,778 hours
- Component: Airesrch
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX4770

## Discrepancy

ACM UNSATISFACTORY DUE TO HIGH FRICTION FROM BEARING.  LIGHT WEAR FOUND ON SHAFT AND RADIAL BEARINGS.  SUSPECT CAUSE OF FAILURE:  CONTAMINATION AND POSSIBLE ENVIRONMENT.  SUBMITTER RECOMMENDS PERIODIC SERVICE OF WATER/PARTICLE SEPARATOR PER MANUFACTURER'S MM.

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