NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-30
Page
18
Code
01
MARCH 30, 2001
ATTITUDE DECLUTTER
When there is an excessive attitude situation, certain indicators are
removed in order to declutter the PFD.
Excessive attitude situation occurs when roll attitude is greater than 65
degrees, or pitch attitude greater than 30 degrees nose up or
20 degrees nose down.
In this case, the following symbology shall be removed from the
display:
− Flight Director couple arrow,
− Low Bank limit arc,
− Flight Director command bars,
− Vertical Deviation scale, pointer and label,
− Radio Altitude digits, label and box,
− Marker beacons indicators,
− Decision Height digits and labels,
− Selected Airspeed bug and indicators,
− Vertical Speed bug and indicators,
− Selected Altitude bug, indicators and box,
− All failure flags associated with the items listed above,
− The Heading, Radio Altitude, LOC, GS, and ILS comparison monitor
displays
The PFD indicators will be restored when both conditions below are
met:
− Roll attitude less than 63 degrees left and right.
− Pitch less than 28 degrees nose up and greater than 18 degrees
nose down.
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