ROLL SPOILERS FAULT
(Caution)

The amber 'ROLL SPOILERS FAULT' caution CAS message indicates either the inboard or outboard roll spoiler have failed, not both.

• Roll assist commands are transmitted to SECU1 and SECU2 from the pilots Control Wheel Resolvers. The SECUs command MFS panel position based on control wheel angular input.

A ROLL SPOILERS FAULT identifies a loss from either channel to identify roll input and command the on-side MFS.

Additional information can be gained from the MDC non-volatile report page by checking the individual SECU for faults.

• None

Advisory Wire/Service Bulletin: None

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:B3-006405 - RESOLVER FAILED [COPILOT CW RES 3]B3-006406 - RESOLVER FAILED [COPILOT CW RES 4]B3-007328 - RESOLVER FAILED [PILOT CW RES 1]B3-007329 - RESOLVER FAILED [PILOT CW RES 2]B3-007915 - NO R-SECU-1 BUS TO DCU [SPOILER ECU 2]B3-007918 - ROLL SPOILR OFF SW FAIL [SPOILER ECU 2]