Skip to content

Aircraft STC directory

AD Holdings T-211 STCs

The Jun 30, 2026 FAA DRS snapshot contains 10 selected supplemental type certificates with status Current whose public applicability data names the AD Holdings T-211. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

10
listed Current at snapshot
7
holder directories
5
modification categories
Jun 9, 2026
latest recorded revision

Modification demand surface

Avionics4
Fuel systems2
Other aircraft modifications2
Engine and powerplant1
Electrical systems1

Recorded holders

Peregrine3Hartzell Engine Technologies, LLC2Airwolf Filter Corporation1Swift Fuels LLC1Petersen Aviation Inc1ADS-B Technologies, LLC1Champion Aerospace LLC1

Recently revised T-211 STCs

Showing the 10 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.