07/02/19
Message Overview:
Fault Message:
DISCR OUTPUT XCHAN/ SFCU#2
Fault Code:
2752253STD
Associated CAS:
| Reporting LRU: | Slat Flap Control Unit (SFCU) 2 |
| System Description: | 27-52-00 |
| Schematic Diagram: | 27-50-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 27-50-07 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The cross channel discrete output of Slat Flap Control Unit (SFCU) 2 is invalid.
Possible Causes:
- Slat Flap Control Unit (SFCU) 2 (A95)
- Flight Control Unit (FCU) (A66)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Performing a SLAT FLAP RESET on the EMS CDU may clear this fault.
NOTE: Wait at least one minute after SFCU reset to allow self test to run.
Quick Links:
| Removal of the Slat/Flap Control Unit (SFCU) | AMM 27-51-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Slat/Flap Control Unit (SFCU) | AMM 27-51-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Perform a wiring check of the discrete interface between SFCU 2 and SFCU 1 as follows:
From To Result A124AP1-31 A95AP1-30 A124AP1-45 A95AP1-44 - If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
- Replace SFCU 2.
- Do close out.