Honeywell FMZ Series Pilot's Manual page 494

Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
1L -- Pushing the UP prompt vertically adjusts the MCDU display
D
upward.
2L -- Pushing the LEFT prompt horizontally adjusts the MCDU
D
display to the left.
2R -- Pushing the RIGHT prompt horizontally adjusts the MCDU
D
display to the right.
6L -- Pushing the DOWN prompt vertically adjusts the MCDU
D
display downward.
6R -- Pushing the RETURN prompt returns to the SYSTEM SETUP
D
1/1 page or to the last page being viewed when the navigation
computer (or performance computer, when installed) is operating.
Pushing RETURN also saves the system status for recall on
subsequent flights.
Maintenance
12-8
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REV 3 Mar 2009