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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

Avionics4Fuel systems2Other aircraft modifications2Engine and powerplant1Electrical 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.