Cirrus SR20 - Electrical System; High Voltage on Main Bus 1; M BUS 1 Warning; High Voltage on Main Bus 2

E - 10 P/N 11935-006
CIRRUS PILOT’S CHECKLIST MODEL SR20
Electrical System
High Voltage on Main Bus 1
M BUS 1 Warning
1. ALT 1 Master Switch........................................................... CYCLE
2. M Bus 1 Voltage (M1) .........................................................CHECK
If M Bus 1 Voltage is greater than 32 Volts:
3. ALT 1 Master Switch................................................................ OFF
4. Perform Alt 1 Caution (Failure) checklist (do not reset alternator).
High Voltage on Main Bus 2
M BUS 2 Warning
1. Main Bus 1 Voltage (M1) ....................................................CHECK
If M Bus 1 Voltage is greater than 32 Volts:
2. Perform M Bus 1 Warning Checklist.
3. Main Bus 2 Voltage (M2) ....................................................CHECK
If M Bus 2 Voltage is greater than 32 Volts:
4. ALT 2 Master Switch........................................................... CYCLE
5. Main Bus 2 Voltage (M2) ....................................................CHECK
If M Bus 2 Voltage remains greater than 32 Volts:
6. ALT 2 Master Switch................................................................ OFF
7. Perform Alt 2 Caution (Failure) checklist (do not reset alternator).
M BUS 1
M BUS 2
March 2017
EMERGENCY
ELECTRICAL