Mid-Continent Instruments 4300 Series Pilot's Manual page 6

B. In-Flight Emergency Procedure - Loss of Main DC Power
In the event of a loss or interruption of main power, the unit will immediately and
automatically switch to standby power. The amber standby power light will start
flashing and continue for approximately 1 minute, warning the pilot that the Electric
Attitude Indicator has lost its main DC power source. The following is a checklist to
activate the standby battery in the Electric Attitude Indicator.
1. Amber Light: Illuminated and flashing.
2. "STBY PWR" button: Press one time.
3. Attitude Indicator: Gyro warning flag out of view. If the red warning flag is
in view, the indicator is inoperative and must not be used.
4. Amber Light: Illumination will stop when STBY PWR button is pressed.
5. Indicator will run for approximately one hour if battery was fully charged.
If the "STBY PWR" is not pressed during the one-minute warning mode, the red
warning flag will appear in view; indicating unit is invalid and will shut down. If
operation is desired after the one-minute warning mode and shut down, simply
press the "STBY PWR" one time to activate the indicator on standby power.
C. Standby Operation Ground Check - Emergency Mode
1. Master switch:
2. Master switch:
3. Amber light:
4. Press "STBY PWR" button: Once
5. Amber light:
6. Gyro warning flag:
7. Press "STBY PWR" button: Once
8. Gyro warning flag:
9. Master switch:
10. Gyro warning flag:
11. Master switch:
12. Amber light:
Rev E May 17, 2007
Operating Instructions
4300-xxx Series Electric Attitude Indicator
On – Unit running for 5 minutes minimum –
Red gyro warning flag out of view
Off
Illuminated and flashing.
Extinguished and not flashing.
Not in view.
In view.
On
Not in view
Off
Illuminated and flashing for one minute then
extinguish
Page 6 of 9 Manual # 9015834
Pilots Guide