06/10/19
Message Overview:
Fault Message:
[ACSC1-A] AV RACK FAN
Fault Code:
2161529ECS
Associated CAS:
| Reporting LRU: | Air Conditioning System Controller (ACSC) 1 |
| System Description: | 21-54-00 |
| Schematic Diagram: | 21-54-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 21-54-15 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The Avionics Rack Supply Fan has been detected failed by the Left Air Conditioning System Controller (ACSC).
Possible Causes:
- Avionics Rack Supply Fan (B67)
- Secondary Power Distribution Assembly (SPDA) 4 (A16)
- Air Conditioning System Controller (ACSC) 1 (A87)
- Data Acquisition Unit (DAU) 3 (A30)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW700-45-0065 - CAIMS Nuisance Fault Messages (Global Express - 9002 to 9153 and Global 5000 - 9127 to 9411, 9417 to 9431,9998 and Global Express XRS - 9159 to 9429)
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Avionics Rack Supply Fan | AMM 21-54-57-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Avionics Rack Supply Fan | AMM 21-54-57-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Air-Conditioning System Controllers | AMM 21-60-21-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Air-Conditioning System Controllers | AMM 21-60-21-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Junction Box JB5 | AMM 24-00-09-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Junction Box JB5 | AMM 24-00-09-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Secondary-Power Distribution Assemblies | AMM 24-62-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Secondary-Power Distribution Assemblies | AMM 24-62-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Data Acquisition Units (DAU) | AMM 31-42-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Data Acquisition Units (DAU) | AMM 31-42-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Swap ACSC 1 and ACSC 2.
- If system checks are good, replace ACSC 1 and do close out.
- If fault remains, continue with next step.
- Make sure power is present at the Avionics Rack Supply Fan.
- If power is present, go to step 5.
- If fault remains, continue with next step.
- Perform wiring checks between SPDA 4 and Avionics Rack Supply Fan.
- If wiring check are not good, repair the defective associated wiring and do close out.
- If wiring check are good, continue with next step.
- Replace SPDA 4.
- If system checks are good, do close out.
- If fault remains, continue with next step.
NOTE 1: If SPDA 3 has been swapped with SPDA 4 a fault may have been transferred to another system on SPDA 2 ref Build 4 load lists with Pinout.xls (Available from FSR).
NOTE 2: When swapping SPDAs, it is possible to loose your DC cabin feeds. Check the EMS-CDU Switch Control Page 3 under SYSTEM - CNTL button. First page is AC feeds 2nd and 3rd are DC feeds that will toggle off.
- Perform wiring checks for the wires between Avionics Rack Supply Fan and ACSC 1.
- If wiring check are not good, repair the defective associated wiring and do close out.
- If wiring check are good, continue with next step.
- Replace Avionics Rack Supply Fan.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Perform wiring checks between JB5 and DAU 3.
- If wiring check are not good, repair the defective associated wiring and do close out.
- If wiring check are good, continue with next step.
- Replace DAU 3.
- Do close out.