06/26/19
Message Overview:
Fault Message:
ROLL CONT INPUT MOD [XDCR MISCOMP]
Fault Code:
27653180SX
Associated CAS:
| Reporting LRU: | Flight Control Unit (FCU) |
| System Description: | 27-60-00 |
| Schematic Diagram: | 27-60-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 27-60-03 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The Pilot and the Copilot Rotary Variable Differential Transformers (RVDT) do not compare.
Possible Causes:
- Pilot Rotary Variable Differential Transformers (RVDT)
- Copilot Rotary Variable Differential Transformers (RVDT)
- Flight Control Unit (FCU) 1 (A65)
- Flight Control Unit (FCU) 2 (A66)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
The Pilot and Co-pilot Roll input control module positions can be found in CAIMS:
- SYSTEM DIAG
- 27-00 FLIGHT CONTROLS
- FLIGHT CONTROL UNIT #1
- LRU TEST
- DISPLAY HANDWHEEL / THROTTLE DATA
- CONFIRM
- Go to page 1/2
Quick Links:
| Removal of the Roll Control Input-Module | AMM 27-11-13-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Roll Control Input-Module | AMM 27-11-13-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Adjustment of the Roll Control Input-Module | AMM 27-11-13-820-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Flight-Control Units | AMM 27-61-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Flight-Control Units | AMM 27-61-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to System Diagnostics | AMM 45-45-00-970-804 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- If other faults are reported in CAIMS related to the roll system, perform the troubleshooting of these faults first.
- If this fault is only reported by one FCU, swap FCUs.
NOTE: Prior to swapping FCUs, clear FCUs latched faults. Make sure that FCUs have gone through the complete Built-In Test with all hydraulics systems pressurized and wait 30 seconds after the "SPLRS STAB IN TEST" CAS message is cleared.- If system checks are good, replace defective FCU and do close out.
- If fault remains, continue with next step.
- If this fault is reported by both FCU, adjust the roll input control module.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- If the fault is reported by the FCU 1, compare the data of PLT RCIM SET OWN and CPLT RCIM SET OWN recorded from the FCU 1 with the data recorded from the FCU 2. If the data of PLT RCIM SET OWN from the FCU 1 has a value greater than +/-12.0 degrees in comparison with the other data.
- If system checks are good, do close out.
- If fault remains, go to step 6.
- If the fault is reported by the FCU 2, compare the data of PLT RCIM SET OWN and CPLT RCIM SET OWN recorded from the FCU 2 with the data recorded from the FCU 1. If the data of PLT RCIM SET OWN from the FCU 2 has a value greater than +/-12.0 degrees in comparison with the other data.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Replace the Pilot Roll input control module.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- If the data of CPLT RCIM SET OWN from the FCU 2 has a value greater than +/-12.0 degrees in comparison with the other data.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Replace the Co-Pilot Roll input control module.
- Do close out.