Pilot reported his garmin G3X gave an airspace warning for savannah class D when he was already well...

Attributes
ACN	1737066
Time
Date	202003
Local Time Of Day	1201-1800
Place
Locale Reference	SAV.Airport
State Reference	GA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	None
Flight Plan	None
Component
Aircraft Component	FMS/FMC
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument Flight Crew Glider Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 30 Flight Crew Total 3500 Flight Crew Type 250
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

On left base to sav runway 10; garmin G3X touch gave a message 'savannah class D within 10 minutes.' I was already in sav class D (inner part of class C; maybe?) or perhaps the system suddenly decided I was headed to svn -- which is universally known as hunter (army air field); but which some fed decided should be called savannah on the charts -- greatly adding to potential confusion; not only on this message but also when searching for nearest airport. The message did not say exactly which airport; only an airport name -- which was ambiguous. Garmin has been advised of the potential ambiguity; and the ludicrousness of this message (500 feet AGL descending and I get a message about class D?). The naming ambiguity has been previously reported. No point in waiting to fix it till somebody gets a pilot deviation because the airport names are similar/ misleading/confusing.

Original NASA ASRS Text

Title: Pilot reported his Garmin G3X gave an airspace warning for Savannah Class D when he was already well within that airspace. Pilot asked if it was possible the warning was for SVN airport; which could be a confusing scenario for pilots.

Narrative: On left base to SAV Runway 10; Garmin G3X touch gave a message 'Savannah Class D within 10 minutes.' I was already in SAV Class D (inner part of Class C; maybe?) or perhaps the system suddenly decided I was headed to SVN -- which is universally known as Hunter (Army Air Field); but which some Fed decided should be called Savannah on the charts -- greatly adding to potential confusion; not only on this message but also when searching for nearest airport. The message did not say exactly which airport; only an airport name -- which was ambiguous. Garmin has been advised of the potential ambiguity; and the ludicrousness of this message (500 feet AGL descending and I get a message about Class D?). The naming ambiguity has been previously reported. No point in waiting to fix it till somebody gets a pilot deviation because the airport names are similar/ misleading/confusing.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Pilot reported his garmin G3X gave an airspace warning for savannah class D when he was already well within that airspace. Pilot asked if it was possible the warning was for svn airport; which could be a confusing scenario for pilots.