Garmin G1000 Pilot's Manual page 260

FLIGHT MANAGEMENT
NOTE: Refer to the current, pertinent flight manual for additional information regarding crew responses for
loss of SBAS and approach downgrade procedures.
Approach
LNAV
LNAV+V Prior to the FAF HSI displays amber L/VNAV;
LNAV/
VNAV
LP
LP+V
LPV
* If there are no LNAV minimums available for the approach, abort.
** System message is generated.
Loss of GPS
When GPS sensors are no longer being utilized for position fixing while on a GPS approach, the
approach must be aborted. When a loss of GPS occurs during a GPS approach, the HSI will no longer
display the CDI deviation bar, the approach indication will display an amber LNAV, and the system
message ABORT APR will be displayed. Once the pilot acknowledges the message, the HSI flight phase
will change and the CDI deviation bar will reappear. Reference the Abnormal Operations in later in this
section for more information on loss of GPS.
240
SBAS Becomes
Description
Unavailable
SBAS not required.
Approach phase
not specified The approach is continued.
VDI displays NO GP. **
HSI displays magenta LNAV;
At/after the FAF
VDI displays NO GP.
More than 1 min
HSI displays amber LP
prior to the FAF
HSI displays magenta LNAV;
Within 1 min
prior to the FAF
CDI is removed. **
At/after the FAF CDI is removed **
HSI displays amber LP+V;
More than 1 min
prior to the FAF
VDI displays NO GP.
HSI displays magenta LNAV;
Within 1 min
CDI is removed.
prior to the FAF
VDI displays NO GP. **
CDI is removed;
At/after the FAF
VDI displays NO GP. **
More than 1 min
HSI displays amber LPV
prior to the FAF
Within 1 min
prior to the FAF HSI displays magenta LNAV;
VDI displays NO GP.
At/after the FAF
Table 5-12 Approach Degradation Behavior
Garmin G1000 Pilot's Guide for the Piper PA-32 Saratoga
Action Required Downgrade
None N/A
None N/A
None LNAV*
None N/A
Acknowledge
message to redisplay LNAV*
CDI with LNAV
Abort N/A
None N/A
Acknowledge
message to redisplay LNAV*
CDI with LNAV
Abort N/A
None N/A
None LNAV*
190-02692-00 Rev. A