Sling 4 TSi
Section 3
Pilot Operating Handbook
Emergency Procedures
Document Number: DC-POH-001-X-F-3.0
Page | 3-16
Revision: 3.0
Date: 2021/07/14
3.7.4
Alternator / Charge System Failure
An alternator A/B failure is indicated by the lane warning lights.
3.7.4.1
Alternator A Failure –
Alternator A failure is evident by the steady illumination of the lane A
warning light, and a drop in the main bus voltage to nominal battery
voltage (+/- 12.5 V)
1.
Lane A ................................... CYCLE SWITCH
(OFF 1 SECOND, BACK ON)
2.
Lane A ................................... VERIFY WARNING LIGHT OFF
If Lane A warning light is still on – assume alternator failure.
3.
ECU Backup ........................... ON
4.
EFIS Backup ........................... ON
5.
Non-Essential Equipment ...... ALL OFF
(a)
Lights, autopilot, secondary EFIS, etc.
6.
EFIS Brightness ...................... MINIMUM
7.
Radio Communication .......... MINIMUM
8.
Land ...................................... AS SOON AS PRACTICABLE
NOTES
a.
No battery charging will occur in this scenario, and the main
battery must be conserved if there is to be a subsequent
alternator B failure.
NOTE
The ECU typically uses GEN A to run the engine, and GEN B is used
to charge the main battery. If GEN A fails, GEN B is reprioritized to
run the engine only and the main battery will no longer charged.