The Aviation DataBase: Service Information: Garmin Bulletins & Letters
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DataBases updated: Nov 13th, 2025
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Installation Bulletins
NameRevisionLangSubjectDate
A en Installation Limitaiton for All Garmin WAAS-Enabled Aviation Products12/22/2010
Service Bulletins
NameRevisionLangSubjectDate
en New GPS Software (Ver 2.11), GPS 400, GNC 420, GNS 430, GPS 500, GNS 43002/15/2002
B en New Software Versions 2.26 for GPS 400, GNC 420 and GNS 430; 2.11 for GPS 500 and GNS 53008/27/2002
en New Software Version 3.00 (Main) for 400/500 Series Units and 3.00 (GPS) for 400 Series09/30/2002
en GDL 49 Software Upgrade to Version 2.0210/16/2002
B en Mandatory GTX 330/330D Software Upgrade to Version 3.0306/12/2003
en GTX 330/330D Software Upgrade to Version 3.0411/10/2003
A en GTX 330/330D Software Upgrade to Version 3.0502/18/2004
en GIA 63 Outside Covers07/01/2004
en Mandatory GTX 330/330D GTX 33/33D* Software Upgrade to Version 3.0607/19/2004
en GIA 63 Mod 109/13/2004
en Mandatory GIA 63 Mod 209/08/2004
en Mandatory New Software Version 5.04 (Main) for 500 Series Units03/15/2005
en Mandatory New Software Version 4.04 (Main) for GPS 400, GNC 420, GNC 420A, GNS 430 & GNS 430A03/15/2005
B en Mandatory GIA 63 Outside Covers07/29/2005
en G1000 Obstacle and Terrain Update for Cessna NAV III Aircraft08/23/2005
en Possible Delamination of Display in GDU Products09/07/2005
B en Procedures to Perform an Alteration to Garmin GPS 500, GNS 530 or GNS 530A Unit & Means to Obtain Installation & Operational Approval for Use of Added TERRAIN Functionality04/11/2006
B en Procedures to Perform an Alteration to Garmin GPS 400, GNS 420/420A or GNS 430/430A Unit & Means to Obtain Installation & Operational Approval for Use of Added TERRAIN Functionality04/11/2006
en Mandatory New 2020 IGRF Magnetic Field Model for G1000, G900X, G950, Cirrus Perspective, Embraer Prodigy Equipped Aircraft with GDU Software Versions 5.02 and Previous10/12/2005
B en Mandatory New 2020 IGRF Magnetic Field Model for G1000, G900X, G950, Cirrus Perspective, Embraer Prodigy Equipped Aircraft with GDU Software Versions 5.02 and Previous01/11/2011
C en Mandatory New 2020 IGRF Magnetic Field Model for G1000, G900X, G950, Cirrus Perspective, Embraer Prodigy Equipped Aircraft with GDU Software Versions 5.02 and Previous11/16/2016
D en Mandatory New 2020 IGRF Magnetic Field Model for G1000, G900X, G950, Cirrus Perspective, Embraer Prodigy Equipped Aircraft with GDU Software Versions 5.02 and Previous10/13/2020
B en Mandatory G1000 System Software Version Update for Diamond DA40 & DA40 F Aircraft11/03/2005
en Mandatory G1000 System Software Version Update for G1000-Equipped Diamond DA42 and DA40D Aircraft10/24/2005
B en Mandatory G1000 System Software Version Update for G1000-Equipped Diamond DA42 and DA40D Aircraft11/16/2005
en GTX 330/330D, GTX 33/33D Software Upgrade to Version 4.04 for Non-G1000 Applications Only03/02/2006
en GDL 69/69A Software Upgrade to Version 3.02 from 400/500 Series Units Only (Excluding GNS 480)01/06/2006
en GTX 327, GTX 32 Software Upgrade to Version 2.09 for Non-G1000 Applications Only01/25/2006
A en G1000 System Software Version Update for G1000-Equipped Diamond DA42 Aircraft05/01/2006
A en G1000 System Software Version Update for G1000-Equipped Diamond DA40D Aircraft06/06/2006
en G1000 System Software Version Update for Diamond DA40 & DA40 F Aircraft09/05/2006
B en G1000 System Software Version Update for Diamond DA40 & DA40 F Aircraft09/26/2006
en G1000 System Software Version Update for Diamond DA40 & DA40 F Aircraft11/21/2006
en GTX 330/330D, GTX 33, 33D Software Upgrade to Version 4.06 for Non-G1000 Applications Only01/16/2007
en NAV Software Version 5.02 for GNS 430/530 Series Units01/17/2007
A en GDL 69/69A Software Upgrade to Version 3.1006/08/2007
en New Software Version 6.03 (Main) for (non-WAAS) 500 Series Units Only08/28/2007
en New Software Version 5.03 (Main) for (non-WAAS) 400 Series Units Only10/18/2007
A en AFM/AFMS Limitation for G1000 Systems06/06/2007
A en AFM/AFMS Crew Procedure Regarding Manual Reversion Mode06/06/2007
A en GTX 33/33D units, Mod Level Change05/18/2007
B en GSM 85 Inspection Procedure05/18/2007
C en GSM 85 Inspection Procedure05/29/2007
D en GSM 85 Inspection Procedure06/13/2007
A en GTX 330/330D Units, Mod Level Change05/18/2007
A en GTX 330/330D, GTX 33/33D & GTX 328 Software Version 5.01 Available for Non-G1000 Applications Only09/24/2007
en Mandatory GRS 77 AHRS (Attitude and Heading Reference System) Mod 109/07/2007
en G1000 System ID Tool09/12/2007
B en G1000 System ID Tool10/22/2007
C en G1000 System ID Tool03/05/2024
B en G1000 System Software Version Update for non-WAAS G1000-equipped Cessna 400 Aircraft02/11/2008
B en Mandatory Transient Voltage Suppressor10/31/2007
en G1000 Phase 6 Update for Diamond DA40 & DA40F Aircraft10/17/2007
B en G1000 Phase 6 Update for Diamond DA40 & DA40F Aircraft10/22/2007
C en G1000 Phase 6 Update for Diamond DA40 & DA40F Aircraft11/14/2007
en Mandatory GDU 104X CRS/BARO Knob Interference07/10/2008
B en Mandatory GDU 104X CRS/BARO Knob Interference08/04/2008
C en Mandatory GDU 104X CRS/BARO Knob Interference11/20/2009
A en G1000 System Software Version Update for G1000-Equipped Diamond DA42 Aircraft10/15/2008
en New Software Version 5.04 (Main) for (non-WAAS) 400 Series Units Only11/14/2008
en New Software Version 6.04 (Main) for (non-WAAS) 500 Series Units Only11/14/2008
A en GTX 330/330D and GTX 33/33D Software Version 6.00 Non-G1000/G900X/GNS 480 Applications Only12/05/2008
B en GTX 330/330D and GTX 33/33D Software Version 6.00 Non-G1000/G900X/GNS 480 Applications Only03/10/2009
A en G1000 System Software Version 0370.21 Update for G1000-Equipped Diamond DA42 Aircraft01/21/2009
B en G1000 System Software Version 0370.21 Update for G1000-Equipped Diamond DA42 Aircraft04/02/2009
C en G1000 System Software Version 0370.21 Update for G1000-Equipped Diamond DA42 Aircraft06/25/2009
A en G1000 System Software Update for Diamond DA40 & DA40 F Aircraft09/21/2009
A en Mandatory SL30, SL40, GNS 480 (CNX80) Comm Radio Spurious Emissions06/22/2009
B en Mandatory SL30, SL40, GNS 480 (CNX80) Comm Radio Spurious Emissions07/13/2009
C en Mandatory SL30, SL40, GNS 480 (CNX80) Comm Radio Spurious Emissions06/11/2010
A en G600 and G500 System's Software Upgrade for GDU 620 Software Version 3.0210/07/2009
A en G1000 System Software Version 0670.03 Update for G1000-Equipped Diamond DA42NG Aircraft11/02/2009
A en G1000 Synthetic Vision & Pathways Activation, Diamond DA42NG11/11/2009
A en GWX 68 Weather Radar, Mod 106/14/2010
B en Optional G100 System Upgrade for G1000 WAAS-Equipped with Beechcraft G36 Bonanza Aircraft to System Software Version 0858.0810/27/2011
A en G1000 System Software Version 0370.22 Update for G1000-Equipped Diamond DA42 Aircraft08/24/2010
A en G1000 Synthetic Vision & Pathways Activation, Diamond DA 4208/24/2010
A en G1000 System Upgrade for G1000 WAAS-Equipped Hawker Beechcraft G36 Bonanza Aircraft to System Software Version 0858.08 (Only Applicable to Aircraft Using System SW Version 0858.07)10/27/2011
A en SafeTaxi® Availability In Europe04/12/2012
B en Software Version 7.02 available for GTX 23, GTX 33/33D w/ES, GTX 330/330D w/ES products (not applicable to GNS 480, G900X, G950, G1000, Cirrus Perspective®, or Embraer Prodigy installations)03/19/2013
A en G1000 System Software Update for Diamond DA40/DA40F Aircraft10/01/2013
en Loading GIA COM and NAV Software09/23/2013
C en Mandatory GSM 9100 Mod 303/04/2015
A en GTN 6XX/7XX Software Upgrade to Main Software Version 5.13 and GMA 35 Audio Software Version 3.1011/25/2014
B en GTN 6XX/7XX Software Upgrade to Main Software Version 5.13 and GMA 35 Audio Software Version 3.1001/14/2015
A en Loss of Engine Indication System (EIS), Diamond DA 40 and DA 40F05/05/2015
A en GTS 8X0 Software Version 4.12 for Non-GX000 Integrated Flight Deck Installations Only08/24/2018
A en Piper PA-46-500TP (M500) aircraft utilizing 006-B2163-09 loader card software10/25/2018
A en GRS 77 Software Version 3.04 - Pitch/Roll Offset Calibration Procedure12/03/2019
A en GRS 77 Software Version 3.04 - Pitch/Roll Offset Calibration Procedure (G1000 with Single GRS and Dual Display)03/18/2020
A en GRS 77 Software Version 3.04 - Pitch/Roll Offset Calibration Procedure (G1000 with Dual GRS and Three Displays)03/18/2020
A en Kavlico Pressure Sensor Inspections for G3X/G3X Touch Equipped Experimental Aircraft05/06/2020
A en GTN 6XX/7XX GPS Date07/02/2020
A en GNS 4XXW and GNS 5XXW GPS Date07/15/2020
A en Mandatory Modification of GEA 24 Resistive Fuel Probe Interface04/23/2021
A en Mandatory Modification of GEA 24 Resistive Fuel Probe Interface04/23/2021
A en Automatic Power Off Setting06/24/2021
A en G5 Ver. 2 Battery Pack06/28/2021
B en G5 Ver. 2 Battery Pack11/10/2021
A en G5 Airspeed Calibration09/16/2021
A en Mandatory GIA 64 COM Receiver09/15/2021
A en GNS 430, GNC 420, GPS 400 Mod 109/17/1999
A en GSR 56 Mod 102/05/2020
A en Mandatory G5 Software Version 7.7012/21/2021
A en Mandatory GIA 64 COM12/06/2021
A en G5 Backup Battery Discharge02/08/2022
A en Mandatory GSA 28 Servo Mod 102/07/2022
B en Mandatory GSA 28 Servo Mod 105/04/2023
A en GTN Xi Main Software Version 20.24, GPS/WAAS Version 8.2, COM Version 2.02, NAV Version 2.04 and GMA 35/c Audio ARC DB Version 4.22C08/08/2022
A en Mandatory Automatic Trim/GDU 4XX Reset11/28/2022
B en Cable Retention Pins12/20/2022
A en Mandatory GSU 75H MOD 1 and MOD 206/30/2023
Service Letters
NameRevisionLangSubjectDate
A en GTN XI Series System Software Loader Images01/12/2022