Cirrus SR22T - Electrical System Emergencies

3-32 P/N 13772-005
Section 3 Cirrus Design
Emergency Procedures SR22T
Electrical System Emergencies
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)
Amplification
Main Bus 1 Voltage is excessive, indicates an alternator 1 voltage
regulator failure; will typically be associated with abnormally high
voltage indications on M1, M2 and ESS busses, may also be
associated with M Bus 2 or ESS BUS Warning message.
M BUS 1
Original Issue