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Aircraft STC directory

Sikorsky Aircraft S-61A (U.S. Navy HSS-2) STCs

The Jun 30, 2026 FAA DRS snapshot contains 4 selected supplemental type certificates with status Current whose public applicability data names the Sikorsky Aircraft S-61A (U.S. Navy HSS-2). Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

4
listed Current at snapshot
1
holder directories
3
modification categories
Feb 24, 2005
latest recorded revision

Modification demand surface

Other aircraft modifications2
Cargo and special mission1
Propellers1

Recorded holders

Carson Helicopters, Inc3

Recently revised S-61A (U.S. Navy HSS-2) STCs

Showing the 4 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.