08/10/21
Message Overview:
Message Name:
R EQPT RACK OVERHEAT
Message Code:
B3-007770
Associated CAS:
| Reporting LRU: | R RACK OVERHEAT |
| System Description: | 21-61-00 |
| Schematic Diagram: | None |
| Wiring Diagram: | None |
Message Description:
The right equipment rack ambient temperature has been detected above the maximum allowed limit considering the avionics cooling system status.
Possible Causes:
- Right Equipment Rack Low Pressure Duct
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Fault Confirmation Procedure:
- Message# = 1
- Fault Logged = AIR,TAXI,GND
- Status = OVERHEAT
- Message Type = Fault Message
- {Term Definitions}
- IAS2A-67 XX 353 10 EXCT XXXX-TXXX XXXX-XXXX XXXX-XXXX 353A: 28; R EQUIPMENT RACH OVERHEAT
- IAS1A-62 XX 353 00 EXCT XXXX-TXXX XXXX-XXXX XXXX-XXXX 353A: 28; R EQUIPMENT RACK OVERHEAT
Quick Links:
| Removal of the Rack Outlet Flexible-Hose | AMM 21-23-21-000-801 |
| Installation of the Rack Outlet Flexible-Hose | AMM 21-23-21-400-801 |
| Standard Practices - Replace Wiring | SPM 20-12-00-02 |
| Standard Practices - Repair Wiring | SPM 20-12-10-02 |
Troubleshooting Recommendations:
- The right equipment rack ambient temperature has been detected above the maximum allowed limit considering the avionics cooling system status.
- Check the low pressure duct of the right equipment rack.