FLIGHT MANUAL BK 117 C-2
NAVIGATION MANAGEMENT SYSTEM - CMA–9000
9.2-51 – 8
EASA APPROVED
Rev. 0
NOTE
A white number indication annunciates a single side failure, whereas no number
indication annunciates a dual side failure.
MESSAGE
DESCRIPTION
PILOTS ACTION / REMARKS
ADC1 FAILED
ADC2 FAILED
ADC input failure
Manual sequencing of altitude terminated legs.
No GPS instrument approaches allowed.
B–RNAV, P-RNAV is not longer possible.
AHRS1 FAILED
AHRS2 FAILED
AHRS input failure
Wind computation unavailable.
ALTITUDE
FAILED
Complete loss of altitude input. DME/
DME and VOR/DME navigation is de-
graded.
Manual sequencing of altitude terminated legs.
No GPS instrument approaches allowed.
AUTO RESET
Upon an exceptional fault the NMS re-
started.
Verify the flight and tuning parameters.
CHECK ANP
The NMS ANP value exceeds the
RNP value.
Verify RNP/ANP values and revert to an alter-
nate means of navigation.
During approach (at or after FAF):
Perform procedure for missed approach.
DISCONTINUITY Passing the last waypoint in the flight
path prior to a route discontinuity. NMS
steering becomes invalid.
Enter next waypoint or close up route disconti-
nuity and engage AFCS when intended.
COURSE
CHANGE
> 125 AHEAD
At the next waypoint, a course change
> 125
°
is expected. The AP may
overshoot the next course intercept.
Verify, and if necessary modify flight plan. At
waypoint course change, be prepared for over-
shoot.
END OF ROUTE
Passing the last waypoint in the route.
NMS steering becomes invalid.
Enter next waypoint and engage AFCS when
intended.
FMS FAILED
Internal hardware failure detected.
Press NMS DISCON pb.
Use other means of navigation.
FMS1 (or 2)
INDEPENDANT
OP
In a dual NMS installation both NMS
are operating independantly from each
other.
NMS1 and NMS2 data are not crosstalked.
Try to synchronize via setup page.
NMS operations must be performed indepen-
dantly on each NMS.
FMS1 (or 2)
X–TALK FAILED
NMS input failure.
In dual configuration the synchronized
mode of operation and manual flight
plan synchronization are not possible.
Possible loss of ATC or DME hold
channel control.
NMS1 and NMS2 data are not crosstalked.
Try to synchronize via setup page.
NMS operations must be performed indepen-
dantly on each NMS.
