Electrical System; High Voltage On Main Bus 1; M Bus 1 Warning; High Voltage On Main Bus 2 - Cirrus SR20 Checklist

EMERGENCY
C I R R U S

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).
E - 10
P I L O T ' S C H E C K L I S T
M BUS 1
M BUS 2
M O D E L S R 2 0
P/N 11935-006
March 2017