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FAA-listed STC holder

Avionics Support Group Inc. STCs

The Jun 30, 2026 FAA DRS snapshot lists 67 selected supplemental type certificates with status Current under Avionics Support Group Inc.. The records span 214 public aircraft directories and 7 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

67
listed Current at snapshot
214
aircraft directories
7
modification categories
Jun 26, 2024
latest recorded revision

Modification mix

Other aircraft modifications23
Avionics18
Aircraft connectivity12
Safety and emergency equipment6
Cabin and interiors4
Electrical systems3
Cargo and special mission1

Aircraft represented

Boeing 737-700 Series712 STCsBoeing 737-800 Series675 STCsBoeing 767-300 Series596 STCsBoeing 737-300 Series522 STCsBoeing 747-400 Series518 STCsBoeing 757-200 Series510 STCsBoeing 727-200 Series450 STCsBoeing 737-200 Series433 STCsBoeing 737-400 Series411 STCsBoeing 767-200 Series357 STCsBoeing 747-200B Series341 STCsBoeing 777-200 Series325 STCsBoeing 737-500 Series323 STCsBoeing 747-100 Series293 STCsBoeing 737-900 Series292 STCsBoeing 727-100 Series262 STCsBoeing 737-600 Series255 STCsBoeing 737-900ER Series235 STCsBombardier CL-600-2B19 (Regional Jet Series 100)230 STCsBoeing 747-300 Series200 STCs

Recently revised records

Showing the 67 most recently revised records. Category directories provide the complete paginated discovery path.

ST03908ATSafety and emergency equipment

Relocation of the Captain's and First Officer's Oxygen Mask Assemblies from the just forward and outboard of each pilot's position in the P13 and P14 crew sidewall panels respectively, to adjacent to the aft edge of the P13 and P14 crew sidewall panels per Avionic Support Group (ASG) Master Data List (MDL) 210126-MDL, Revision C, dated December 23, 2010, or later Atlanta ACO approved revision.

FAA holder: Avionics Support Group Inc.

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