07/08/19
Message Overview:
Fault Message:
ROLL SPLRS PLT CONT PBA/WRG FAULT
Fault Code:
27657200SX
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: | 27-60-05 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
There is a failure of Pilot ROLL SPLRS CONT Push Button Annunciator.
Possible Causes:
- Pilot Roll Spoiler Control Push Button Annunciator (PBA) (AP15)
- Flight Control Unit (FCU) 1 (A65)
- Flight-Control Unit (FCU) 2 (A66)
- Pilot Roll Spoiler Control Switch
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Access the system diagnostic and validate the proper operation of the pilot roll pushbutton:
- Make a selection of FLIGHT CONTROL UNIT #1 or #2 as applicable.
- Make a selection of LRU TEST.
- From the LRU TEST MENU, make a selection of the applicable test:
- COCKPIT SWITCHES TEST [FCU 1] or
- COCKPIT SWITCHES TEST [FCU 2]
- Obey the instructions given on the PMAT.
- Record the results of the test and the Fault Messages.
- If the cockpit switches test FAILED, continue with this procedure.
Quick Links:
| 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 you have other CAS message related to the flight control system, perform the troubleshooting in SFP of this or these other CAS messages first.
- Access the Cockpit switch test page for the FCU 1 and FCU 2 and confirm the Pilot Roll SPLRS PBA toggle from "selected" to "not selected" in both FCU.
- If both FCU are not toggling, go to step 5.
- If only one is not toggling, continue with next step.
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.
- Swap FCUs.
- If system checks are good, replace defective FCU and do close out.
- If fault remains, continue with next step.
- Perform wiring checks between FCU 1, FCU 2 and pilot roll spoiler PBA.
- If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
FCU Status Result A65AP1-8K Not pushed Ground Pushed Open A66AP1-8K Not pushed Ground Pushed Open
- Replace the Roll Spoiler Control Switch.
- Do close out.