ST2296NMPropellers
Installation of a propeller auto feather system utilizing total pressure probes in the propeller prop wash as the sensing medium.
FAA holder: Transnorthern Aviation
Aircraft STC directory
McDonnell Douglas R4D-8 STCs
The Jun 30, 2026 FAA DRS snapshot contains 4 selected supplemental type certificates with status Current whose public applicability data names the McDonnell Douglas R4D-8. 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
Jul 27, 2009
latest recorded revision
Modification demand surface
Other aircraft modifications2
Propellers1
Landing gear and brakes1
Recorded holders
Recently revised R4D-8 STCs
Showing the 4 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA3-425Other aircraft modifications
Installation of one-piece windshield, electrically heated or bird-proof.
FAA holder: Signature Flight Support
ST02196AKOther aircraft modifications
Reduction of payload to 7500 pounds and limitation of passenger seats to 19 or few.
FAA holder: Transnorthern, LLC
SA4149WELanding gear and brakes
Installation of a flap and landing gear aural warning system.
FAA holder: Northern 3 LLC