L3 comminications Trilogy ESI-1000 Pilot's Manual page 41

ESI-1000
Corrective Actions
conDition
SW Release 1.1 only
Attitude display ele-
ments replaced with
"ALIGN HOLD" af-
ter cycling power or
re-aligning using the
menu option.
Pilot's Guide
(continued)
caUse/correctiVe action
The Align Hold message is displayed when
the unit is "Aligning" and one or more of
the following conditions are detected.
1. The pitch or roll angle of the unit is in a
heightened dynamic state.
Return the aircraft to non-dynamic
straight and level flight will cause the
"Aligning" message to return
2. For Part 27/29 aircraft - The Mag is
sending a failed message. This is in-
dicated by the heading digital readout
being removed and a large red X in
the middle of the heading tape. A "Mag
Failed" message is shown above the
heading tape.
• If Mag begins working the mes-
sage is removed and the alignment
continues.
• If the alignment does not become
active, cycle power.
• If the invalidity continues to be
observed after power cycle the
Mag may be defective. Have the
Mag checked by certified service
center.
3. For Part 27/29 aircraft - No Mag input
signal is being detected. This is indi-
cated by the heading digital readout
being removed and a large red X in the
middle of the heading tape. A "No Mag
Input" message is shown above the
heading tape.
• If Mag begins working the mes-
sage is removed and the alignment
continues.
• If the alignment does not become
active, cycle power.
• If the invalidity continues to be
observed after power cycle the
Mag may be defective. Have Mag
checked by certified service cen-
ter.
Troubleshooting
4-3