# SDR CA120404005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2012
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Bell 206B
- Registry model: [Bell 206B](https://openairdocs.org/model/bell-206b) (OpenAirDocs)
- Aircraft time: 14,495 hours
- Engine: Allsn 250C20B
- System (JASC): [3000 · Ice/Rain Protection System](https://openairdocs.org/jasc/3000)
- Part: Line
- Part number: 23053192
- Condition: Cracked
- Location: Anti-Ice Valve
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA120404005

## Discrepancy

(CAN) WHILE MAINTENANCE WAS CARRYING OUT POWER ASSURANCE CHECK IT WAS NOTED THAT THE TORQUE WAS LOW.  TROUBLESHOOTING WAS ACCOMPLISHED BY MAINTENANCE AND FOUND A DEFECTIVE ANTI-ICE VALVE.  THE ANTI-ICE VALVE FOUND TO HAVE CRACKED WHERE IT ATTACHES TO THE COMPRESSOR SHCROLL.  THE DEFECTIVE VALVE WAS CHANGED WITH A POWER AND LEAK CHECK CARRIED WITH NO FURTHER FAULT AND TORQUE WITH IN THE SPECIFIED LIMITS.

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