EFD1000H PFD Pilot’s Guide
Page 6-8
091-00012-001 REV C
EFD1000H PFD Pilot’s Guide
Page 6-9
091-00012-001 REV C
CHAPTER 6
EXP
ANDED EMERGENC
Y AND ABNORMAL PROCEDURES
6.5. Loss of Aircraft Electrical Power
In the event that aircraft generated power is degraded or fails, the PFD will
automatically switch to its own dedicated battery (
Figure 6-2
). When continued safe
operation depends on the PFD,
UNRESTORABLE LOSS OF EXTERNAL POWER IS AN
EMERGENCY SITUATION
. The aircraft should divert to the nearest suitable airport.
Loss of or Degraded Aircraft Power or ON BAT Annunciation
1. Electrical System .....................................................Follow AFM procedures to restore
power
2. If unable to restore power ................................Land as soon as possible
The internal battery will normally provide between 30-60 minutes of operation at
approximately 20°C and warmer. At extreme cold temperatures, operation of the
internal battery is not assured.
When on battery the auto backlight intensity level defaults to 40% and manual
backlight intensity is limited to 70%. Changing the backlight intensity will affect the
battery duration, which is reflected in the % remaining indication.
A fully charged battery will indicate a charge level of 99% for some time before
beginning to discharge. The charge level will steadily decrease when below 95%, with a
slight acceleration as the battery nears 0%.
The “ON BAT” annunciation, along with the estimated battery charge remaining, is
displayed whenever the system is operating on battery.
Figure 6-2
Battery Charge Remaining
