Battery Backup System:18VDC, 1.0 Ah, Lead-acid, TSO
The MD420 Emergency Power Supply System is designed to supply emergency power to the Mid-Continent Instrument 4200 and 4300 series attitude indicator when the aircraft main power buss has been de-energized. Additionally, the MD420 will supply emergency lighting power to two additional instruments such as an airspeed and altimeter. During normal aircraft operation, the MD420 will utilize the aircraft main power buss to recharge or maintain existing charge on the System. |
Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.