AIRPLANE
OPERATIONS
MANUAL
AUTOPILOT
REVISION 40
2-19-20
Page
1
Code
01
AOM-145/1114
CATEGORY II APPROACH (OPTIONAL)
The IC-600 may be optionally equipped with a Category II checklist
logic warning which is automatically activated whenever the Decision
Height is selected between 80 and 200 ft through the RA knob on the
Display Control Panel.
CATEGORY II CONDITIONS
The required conditions to obtain a Cat II valid conditions are:
Radio Altimeter indication valid on both PFDs.
Radio altitude above 80 ft (80 ft is included for EICAS version
20.7).
Flaps 22°.
NAV 1 on pilot’s side and NAV 2 on copilot’s side, both tuned to
the same frequency.
An active approach mode selected above 1000 ft AGL.
Both Flight Directors operational (command bars visible).
Attitude and heading valid on both PFDs.
Glide slope and localizer deviation valid on both PFDs.
No reversions (SG, AHRS, IRS or ADC) modes selected on
both PFDs.
Valid airspeed and barometric altitude on both PFDs.
No comparison monitors are tripped (attitude, heading,
airspeed, barometric altitude, localizer, glide slope and radio
altitude) on both PFDs.
No back course selected.
Autopilot engaged (not required for EMB-135 and EMB-145 XR
models).
Cat II Decision Height setting on both Display Control Panels
(greater than 80 ft and less than 200 ft - 80 ft is included for
EICAS version 20.7).
NOTE: For EMB-135 and EMB-145 XR models the CAT II approaches
are allowed using either the Autopilot or Flight Director for
guidance.
If all conditions are met, a green CAT 2 annunciation is displayed on
the PFDs. If any of the required conditions for establishing CAT 2 goes
invalid, the green CAT 2 will be replaced by flashing amber CAT 2
annunciation. It will flash for ten seconds and then go steady.
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