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Aircraft STC directory

SOCATA - Groupe Aerospatiale TB21 STCs

The Jun 30, 2026 FAA DRS snapshot contains 8 selected supplemental type certificates with status Current whose public applicability data names the SOCATA - Groupe Aerospatiale TB21. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

8
listed Current at snapshot
5
holder directories
6
modification categories
Apr 16, 2020
latest recorded revision

Modification demand surface

Flight controls2
Other aircraft modifications2
Avionics1
Fuel systems1
Engine and powerplant1
Propellers1

Recorded holders

Honeywell International Inc2S-TEC Corporation2Shadin Avionics1Horizon Instruments Inc1Hartzell Propeller Inc1

Recently revised TB21 STCs

Showing the 8 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.