AIRCRAFT FLIGHT
MANUAL
BRISTELL B23
Document No.: ADXC-73-001-AFM
Approved page
Revision: A2
3-12
Date of Issue: 15.04.2021
3. Speed
-
67 KIAS
4. Land as soon as practical 3.6.2.
3.8.5
Alternator failure / use of back-up battery
The Rotax 912 S engine has an integrated AC generator, a further
external alternator is installed. Alternator failure is indicated on the PFD.
Voltage drop below 11 volts is indicated by “Low Volt” warning on EFIS
display and EMS caution light on instrument panel.
If both alternator fail an additional back up battery can be activated
supplying
-
the Garmin PFD / ADAHRS / EIS
-
Glareshield lights
for a limited period of time (around 30 minutes).
The L3 ESI-500 instrument is additionally equipped with an internal
backup battery.
In any case switch off all non-essential electrical equipment and land as
soon as practical.
Use of back-up battery:
1. Back up battery switch
-
engage
2. Back up battery CB
-
pull
3. EIS CB
-
pull
4. PFD CB
-
pull
5. ADHRS CB
-
pull
6. DIMMER CB
-
pull
7. L3 switch
-
off
8. L3
-
confirm activation of internal
battery
9. USB power
-
remove load
NOTE
Functionality of low fuel warning and indication light dimming is no longer
given