Honeywell FMZ Series Pilot's Manual page 187

Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
Magnetic declination is defined as the difference between the zero
degree radial of the station and true north. For many navaids, this is not
equal to the local magnetic variation due to the constantly changing
earth magnetic field. When magnetic declination is not available,
magnetic variation is displayed.
Figure 6--27 shows the DATA BASE WPT page for a nondirectional
beacon. The letters NB are entered after the identifier.
01607.02
Figure 6- -27
DATA BASE WPT 1/1 NB
A28- - 1146- - 181
Navigation
REV 3 Mar 2009 6-29
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