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OPERATOR’S
MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page E-16
November 19, 2009
SYSTEM ALERT
MESSAGE
DESCRIPTION ACTION
APPLICABLE
CONFIGURA-TION
SET QNH
(cont’d)
If the IS&S EFIS is installed:
If this message has been
triggered as a result of being
within a 30 nm distance from the
destination airport while below
the transition level (TRANS LVL)
specified on the PLAN DATA
page, then this message is reset
if barometric pressure reference
is selected by the crew and
barometric corrected altitude is
available.
If the IS&S EFIS is installed:
If this message has been
triggered as a result of being at
least 33 nm away from the origin
airport, and, is above the
transition altitude (TRANS ALT)
specified on the PLAN DATA
page, then this message is
reset if standard pressure
reference is selected by the
crew.
If the message is
configured, and the FMS is
in terminal and approach
operations
SET QNH
(cont’d)
NOTE: For ROTOR aircraft,
airport terminal areas are only
detected around navigation
database airports
.
If the message is
configured, and the FMS is
in terminal and approach
operations
TACAN NAV LOST
No TACAN sensor data is
available for the onside and
offside FMSs.
TACAN navigation mode is no
longer available.
If FMS was in TACAN navigation
mode, it automatically reverts to
the next available navigation
mode.
Ensure that identified TACAN
receiver is powered.
Verify if TACAN receiver
operates normally.
Advise maintenance.
TACAN interface
TACT APPR DB
INVALID
The FMS detects a tactical
approach database corruption.
Tactical approach already
loaded in the flight plan is
still considered valid and can
be used but attempt to re-
select a tactical approach
from the
database is prohibited.
Advise maintenance.
Tactical Approach
configured
TDN FUNCTION
LOST
The FMS has detected a failure
of all configured onside and
offside Radio Altimeters. As a
result, the TDN functionality has
been lost.
Ensure that Radio Altimeter is
powered.
Verify if Radio Altimeter
operates normally.
Advise maintenance.
•
Hover function
•
Radar Altimeter interface
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