MOONEY
M20V ACCLAIM ULTRA
SECTION III
EMERGENCY PROCEDURES
3 - 12
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE - 03-16-2017
If GARMIN G1000 GPS navigation information is not available or invalid, utilize remaining op-
erational navigation equipment as required.
If the “POSN ERROR” annunciation is displayed the system will flag and no longer provide GPS
based navigational guidance. The crew should revert to the G1000 VOR/ILS receivers or an al-
ternate means of navigation other than the G1000 GPS receivers.
If the “POSN ERROR” annunciation is displayed in the enroute, oceanic, terminal, or initial ap-
proach phase of flight, continue to navigate using the GPS equipment or revert to an alternate
means of navigation other than the G1000 GPS receiver appropriate to the route and phase of
flight. When continuing to use GPS navigation, position must be verified every 15 minutes using
the G1000 VOR/ILS receiver or another IFR- approved primary navigation system.
If the “POSN ERROR” annunciation is displayed while on the final approach segment
(between the Final Approach Fix and the Missed Approach Point), GPS based navi-
gation will continue for up to 5 minutes with approach CDI sensitivity set at 0.3 nauti-
cal mile. It is recommended that the pilot initiate the missed approach upon receipt
of this message from the G1000. Navigation guidance will continue for 5 minutes al-
lowing the pilot to initiate the missed approach while maintaining course guidance
on the final approach course. Then the system will flag and no longer provide course
guidance with approach sensitivity. Missed approach course guidance may still be
available with 1 nautical mile CDI sensitivity by executing the missed approach. This
is typically caused by the GPS sensor’s inability to provide adequate horizontal posi-
tion accuracy for the final approach segment. It is possible, however unlikely, that
the GPS position may degrade to the point where terminal operations cannot be sup-
ported for the missed approach segment. Navigate using other primary navigation
equipment (VOR receivers, etc.) if this occurs.
-CAUTION-
In an in- flight emergency, depressing and holding the Comm transfer button for 2 seconds will
select the emergency frequency of 121.500 MHz, and will show it in the “Active” frequency win-
dow.
The Attitude, Heading and Reference System (AHRS) requires at least one GPS or air data input
to function properly. In the unlikely event that both GPS position sources fail, and the air data
computer fails, the AHRS will subsequently lose attitude and heading and the pilot will be re-
quired to use the standby instrumentation. In this instance, the PFD will not provide altitude,
airspeed, attitude, or navigation information
Revision A: 08-18-2017
