# SDR 96ZZZX3878

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Acm
- Part number: 220470001
- Condition: Failed
- Location: Thrust Bearing
- Component: Alidsignal
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX3878

## Discrepancy

TWO EACH AIR CYCLE MACHINES THRUST BEARING FAILURES WITHIN 6 TO 8 HOURS OF OPERATION.  ALLIED SIGNAL HAS TRACED THIS BACK TO A THRUST BEARING FOIL COATING PROCESS PROBLEM IN MID-1994.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.