ESI-2000
Pilot’s Guide3-16
Operating Instructions
Magnetic Heading Invalidity, Align Hold and Message (Refer to Figure 3-20
& 3-21)
Units with release 1.0 & 1.1, used on a Part 27/29 Rotorcraft only.
If heading data is invalid prior to power being cycled or if the unit is re-aligned
the “Align Hold” message replaces the attitude information, the heading tape
is lled with a red X and the heading digital readout is removed, replaced by
either a “No Mag Input” or “Mag Failed” message.
If heading data becomes valid the unit completes alignment and normal
operation begins.
If invalidity continues to be observed refer to Chapter 4 Troubleshooting.
Figure 3-20: Align Hold (No Mag Input)
Figure 3-21: Align Hold (Mag Failed)
ERRORS AND INVALIDITIES (Continued)
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