WING ANTI-ICE FAULT
(Advisory)

The cyan 'WING ANTI-ICE FAULT' advisory CAS message indicates one channel has failed on the outboard wing leading edge sensor.

• The wing temperature sensor operating range is -55 to +260°C however operates normally between -50 to +200°C. Leading edge temperatures exceeding these limits will cause the IASC to think the sensor is invalid and post the Cyan WING ANTI-ICE FAULT CAS message.
• The wing ANTI-ICE should work normally.
• Leading edge sensor status can be viewed through the MDC system diagnostics IASC #1 or #2 channel B LRU test. More details covered ins section ATA 30-12.

• None

Advisory Wire/Service Bulletin:

• AW300-72-0348 - AS907 Engine Diffuser Seal and Anti-Ice Valve

Forum Articles/Infoservice/Newsletter: None

None

1. Interrogate the MDC as follows:

   1. On the cursor control panel, ensure the toggle switch is to the right and select Anti-Ice, ECS and Fuel buttons simultaneously. The MDC main menu should now be displayed on Display Unit #3.
   2. Using the joystick, select Current Faults (if the fault is active) or Aircraft History to research stored faults. From Aircraft History you can then select Fault Message History and locate the fault. Going into advanced diagnostics will provide an equation id for the fault identified.
   3. Select the MDC fault or equation from the drop down below to provide additional information to assist in troubleshooting.
      Select an MDC Fault Code/Message:B3-007108 - CH A&B FAULT [L O/B TEMP SNSR]B3-007109 - CH A FAULT [L O/B TEMP SNSR]B3-007110 - CH B FAULT [L O/B TEMP SNSR]B3-007831 - CH A&B FAULT [R O/B TEMP SNSR]B3-007832 - CH A FAULT [R O/B TEMP SNSR]B3-007833 - CH B FAULT [R O/B TEMP SNSR]B3-527531 - LOW TEMP DISCRETE 1 FAIL [IASC1]B3-527545 - HI TEMP DISCRETE 1 FAIL [IASC1]B3-527580 - LOW TEMP DISCRETE 2 FAIL [IASC2]B3-527581 - HI TEMP DISCRETE 2 FAIL [IASC2]B3-006839 - NO SIGNAL/OUT OF RANGE [HI PRESS SNSR1]B3-006840 - NO SIGNAL/OUT OF RANGE [HI PRESS SNSR2]