CHAPTER 4
REFERENCE GUIDE
EFD1000 E5 Pilot’s Guide
Page 4-7
091-00086-001 ( )
Two minutes after detection, a FREE GYRO MODE annunciation will be presented
across the Navigation display, indicating the heading system no longer can be aligned
with magnetic north. Some precession of the heading is possible, especially during
abrupt maneuvers. If the condition persists for four more minutes (six minutes
total) the attitude and heading indicators will be removed and replaced with red X
indications. When the conditions causing Free Gyro Mode are no longer present,
attitude and heading indications will be restored after an automatic AHRS reset.
4.1.5. Degraded Mode
For Degraded ADAHRS Performance, reference the following:
•
Sections 6.1. Pitot/Static System Blockage
•
Sections 6.8. In-Flight AHRS Reset
•
Geographic Limitations
in the
Aircraft Flight Manual Supplement
that
was installed in the aircraft with your EFI.
