07/02/21
Message Overview:
Message Name:
LEFT BLEED PRESSURE TRANSDUCER OUTPUT IS OUT OF RANGE
| Message Code: | 361OBS008 |
| Effectivity: | All |
| System: | Bleed Air System |
| System Description: | 36-11-00 |
| Schematic Diagram: | 36-11-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 36-11-03 [ Global Express ] [ G5000 ] [ Global XRS ] |
Message Description:
The Bleed Management Controller (BMC) senses that the Bleed Pressure Transducer (BPT) output is not between 0.02 and 9.9 VDC.
Possible Causes:
- Left Bleed Pressure Transducer (BPT) (MT96)
- Junction Box 3 (JB3)
- Left Bleed Management Controller (BMC) (A69)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Troubleshooting using CAIMS message if the active channel of the bleed management controller sends the message LEFT BLEED PRESS XDCR /WRG to CAIMS when L BPT output is out of range.
Quick Links:
| Connect Electrical Power to the Aircraft | AMM 24-00-00-861-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Remove the Electrical Power from the Aircraft | AMM 24-00-00-861-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrical/Electronic Safety Precautions | AMM 24-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Junction Box JB3 | AMM 24-00-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Junction Box JB3 | AMM 24-00-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Bleed Pressure Transducer | AMM 36-11-25-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Bleed Pressure Transducer | AMM 36-11-25-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Bleed Management Controller | AMM 36-11-33-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Bleed Management Controller | AMM 36-11-33-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Starting the APU | AMM 49-10-00-866-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| APU Shutdown (Normal) | AMM 49-10-00-866-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the External Avionics-Compartment Access-Panel (140BB) |
AMM 52-45-11-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the External Avionics-Compartment Access-Panel (140BB) |
AMM 52-45-11-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Safety Precautions - Maintenance Practices - ALL | SPM 20-00-01-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Swap Right BPT with Left BPT.
- If the system checks are good, replace right BPT and do close out.
- If fault remains, continue with next step.
- Remove power from the aircraft. Disconnect left BPT connector (MT96P1) and aft pressure bulkhead connector (P625). Remove JB3 to get access to the connector. Perform a continuity check between the BPT and the JB3 as follows:
From To Result MT96P1-A P625-E MT96P1-B GS264 JB3AP1-11D J625-E - If there is no continuity, repair defective wiring and do close out.
- If there is continuity, continue with next step.
- Perform a continuity check for an open circuit between the contacts on JB3 that follows:
From To Result JB3AJ1-11A JB3AJ1-11D - If there is no continuity, replace JB3 (PCB2) and do close out.
- If there is continuity, continue with next step.
- Disconnect the connectors P611, MT96P1 of left BPT and A69P1 of left BMC. Perform a continuity check for an open circuit between the contacts on left BPT that follows:
From To Result MT96P1-C P611-HH MT96P1-D P611-KK A69P1-7 J611-HH A69P1-8 J611-KK - If there is no continuity, repair defective wiring as required and do close out.
- If there is continuity, continue with next step.
- Perform a continuity check as follows:
From To Result MT96P1-C MT96P1-D MT96P1-C MT96P1-Sh MT96P1-D MT96P1-Sh A69P1-7 A69P1-8 A69P1-7 A69P1-Sh A69P1-8 A69P1-Sh - If there is continuity, repair defective wiring as required and do close out.
- If there is no continuity, continue with next step.
- Replace Left BMC.
- Do close out.