06/06/19
Message Overview:
Fault Message:
[ACSC1-A] LH PCK IN FLOW SENS /WRG
Fault Code:
2161414ECS
Associated CAS:
| Reporting LRU: | Air Conditioning System Controller (ACSC) 1 |
| System Description: | 21-51-00 |
| Schematic Diagram: | 21-51-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 21-51-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Left Pack Inlet Flow Sensor has been detected out of range by Air Conditioning System Controller (ACSC) 1.
Possible Causes:
- Pack Inlet Flow Sensor 1 (MT66)
- Air-Conditioning System Controller (ACSC) 1 (A87)
- Junction Box (JB5)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW700-21-0160 - "PACK FAULT" CAS message while CAIMS / OMS is active (Global Express / XRS - 9002 to 9312, 9314 to 9380, 9384 to 9429 and Global 5000 - 9127 to 9383, 9389 to 9400, 9404 to 9431 and 9998)
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Pack Inlet Flow-Sensors | AMM 21-51-13-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Pack Inlet Flow-Sensors | AMM 21-51-13-400-801 [ 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 ] |
| 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:
- Access Systems Diagnostics. With PACK not running and cold, verify if sensor data is valid and compares with opposite side sensor data.
- If different, then continue with next step.
- If the readings are valid and the same, check sense lines for leakage.
- Swap Pack Inlet Flow-Sensor 1 with and Pack Inlet Flow-Sensor 2 and check data.
- If system checks are good, replace Pack Inlet Flow-Sensor 1 and do close out.
- If fault remains, continue with next step.
- Swap ACSC 1 with ACSC 2.
- If system checks are good, replace ACSC 1 and do close out.
- If fault remains, continue with next step.
- Perform wiring checks between Pack Inlet Flow-Sensor and ACSC 1.
- If wiring checks are not good, repair defective associated wiring and do close out.
- If wiring checks are good, continue with next step.
- Perform wiring checks of power source circuit for the Pack Inlet Flow-Sensors from JB5.
- If wiring checks are not good, repair defective associated wiring and do close out.
- If wiring checks are good, continue with next step.
- Perform continuity check of JB5 circuit for pack inlet flow sensor.
- If there is continuity, repair the defective associated wiring as required and do close out.
- If there is no continuity, continue with next step.
- Replace JB5.
- Do close out.