MOONEY
M20TN - MODEL TYPE-S
SECTION III
EMERGENCY PROCEDURES
3 -- 6
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 04-02-2008
GARMIN G1000 ANNUNCIATION
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.
--CAUTION--
If the “POSN ERROR” annunciation is displayed while on the final approach seg-
ment (between the Final Approach Fix and the Missed Approach Point), GPS
based navigation will continue for up to 5 minutes with approach CDI sensitivity
set at 0.3 nautical mile. It is recommended that the pilot initiate the missed ap-
proach upon receipt of this message from the G1000. Navigation guidance will
continue for 5 minutes allowing 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 sensitiv-
ity by executing the missed approach. This is typically caused by the GPS sen-
sor’s inability to provide adequate horizontal position accuracy for the final ap-
proach segment. It is possible, however unlikely, that the GPS position may
degrade to the point where terminal operations cannot be supported for the
missed approach segment. Navigate using other primary navigation equipment
(VOR receivers, etc.) if this occurs.
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
