
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN G1000 INTEGRATED AVIONICS SYSTEM
WITH GARMIN GFC 700 AUTOPILOT
DIAMOND MODEL DA 40
DIAMOND MODEL DA 40 F
190-00492-10 Rev 8 Diamond DA 40 / DA 40F
4B-1
SECTION 4B
ABNORMAL PROCEDURES
4B.3 FAILURES IN THE ELECTRICAL SYSTEM
(a) Low voltage caution (LOW VOLTS)
This caution is indicated when the normal on-board (bus) voltage (28V) drops
below 24V.
Possible reasons are:
-A fault in the power supply
-RPM is too low
(i) Low voltage caution on the ground:
1. Engine speed ....................................................................................... 1200 RPM
2. Electrical equipment ..................................................................................... OFF
3. Ammeter and voltmeter .............................................................................. check
If the caution message does not extinguish, and the ammeter gauge legend
flashes and the ammeter gauge reads zero, discontinue the flight.
(ii) Low voltage caution during flight:
1. Electrical equipment ............................................................... OFF if not needed
2. Ammeter and voltmeter .............................................................................. check
If the caution message does not go out, and the ammeter legend flashes and the
ammeter gauge reads zero, follow procedure 3.7.2(b) – Alternator Failure, in
this Supplement.
(iii) Low voltage caution during landing:
-Follow (i) after landing
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