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Aircraft STC directory

Atlantic Coast Seaplanes G-21E STCs

The Jun 30, 2026 FAA DRS snapshot contains 6 selected supplemental type certificates with status Current whose public applicability data names the Atlantic Coast Seaplanes G-21E. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

6
listed Current at snapshot
3
holder directories
5
modification categories
Dec 12, 2023
latest recorded revision

Modification demand surface

Avionics2Aircraft structures1Other aircraft modifications1Propellers1Aircraft performance1

Recorded holders

Garmin International Inc3Andrew D. Humphrey1SMR Technologies1

Recently revised G-21E STCs

Showing the 6 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.