# SDR A6WA200640137

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2006
- Submitted: May 15, 2006
- Operation: Air carrier
- Aircraft: [N434AW](https://openairdocs.org/aircraft/N434AW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7322
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Relief Valve
- Part number: 22856480801
- Part serial: 2679
- Condition: Malfunctioned
- Location: Anti Ice Sys
- Part time: 4,970 hours, 4,554 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A6WA200640137

## Discrepancy

AFTER TAKEOFF ENTERED ICING CONDITIONS, TURNED ON LEFT AND RIGHT COWL ANTI-ICE.  LEFT ICING CONDITIONS AND TURNED OFF COWL ANTI-ICE, LEFT COWL ANTI-ICE AMBER CAS MESSAGE APPEARED ON EICAS.  REMOVED AND REPLACED PRESSURE RELIEF VALVE ON LEFT ENGINE IAW AMM 30-22-04.  OPS CHECK GOOD.  (M)

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