Installation manual
5-12 Navigation 
FMS HOOKS 
There are shortcuts to accomplish typical FMS actions on the 
FPL tab of the FMS page. The L4 LSK will present the most 
appropriate selection from the table below based on the flight 
state or scenario at the moment. Pressing the LSK or the soft key 
label adjacent to the LSK will accomplish the action. 
L4 LSK Label 
Comments 
Activate 
Approach 
Displayed if either the next downpath approach in the flight 
plan is preceded by a discontinuity (gap in flight plan) and 
the aircraft is within 40 nm of the FAF OR the next leg of 
the flight plan is the first leg of a published approach and 
there is a discontinuity or a Vectors-To-Final arrival 
selected. 
Retry 
Approach 
Displayed when the active leg of the flight plan is part of a 
published missed approach and you were conducting a 
Vectors-To-Final approach. Selecting this option will 
activate the first leg of the VTF approach (i.e. the leg into 
the FAF). This option will not be displayed if you were 
conducting a full published approach. 
Enable 
Missed 
Displayed when the next leg of the flight plan is the first leg 
of a published missed approach. Typically this occurs 
immediately after the FAF. Pressing the LSK will activate 
the published missed approach for that approach if it is in 
the flight plan. Not pressing the button prior to reaching the 
MAP results in guidance outbound from the MAP using the 
same course as the final approach course. 
Continue/Exit 
Hold 
Displayed when the active leg of the flight plan is a hold 
and is not the last leg of the route. Pressing the LSK will 
either command the FMS to continue the hold or exit it. 
Skip Hold 
Displayed when the aircraft is within 5 nm of the FAF and 
the next leg is a database procedure hold. Pressing the 
LSK will sequence the active leg past the hold without 
entering it when the aircraft reaches the FAF. The leg after 
the hold will become active. 
Sequence 
Leg 
Displayed when there is no altitude source and the active 
leg terminates at an altitude. Pressing the LSK  upon 
reaching the altitude is required to sequence to the next 
leg. 
Enable A/P 
Approach 
Displayed for specific autopilots (e.g. KAP140, KFC225) 
when the FMS determines it is time for the autopilot to be 
in Approach mode but does not have any control or 
knowledge of the actual autopilot state. This case is just a 
prompt, and no pilot action must be taken on the IFD. 










