SE2340SWOther aircraft modifications
Installation of modified cylinder assemblies, barrels, piston, and repaired crankcases.
FAA holder: Continental Motors, Inc.
Aircraft STC directory
Teledyne Continental Motors TSIO-520-NB STCs
The Jun 30, 2026 FAA DRS snapshot contains 24 selected supplemental type certificates with status Current whose public applicability data names the Teledyne Continental Motors TSIO-520-NB. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
24
listed Current at snapshot
4
holder directories
4
modification categories
Oct 31, 2016
latest recorded revision
Modification demand surface
Other aircraft modifications14
Engine and powerplant5
Fuel systems4
Electrical systems1
Recently revised TSIO-520-NB STCs
Showing the 24 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SE09280SC-DEngine and powerplant
Modify engine in accordance with RAM Aircraft Corporation Drawing No. 1888.
FAA holder: RAM Aircraft Limited Partnership
SE09281SC-DEngine and powerplant
Modify engine in accordance with RAM Aircraft Corporation Drawing Number 1891.
FAA holder: RAM Aircraft Limited Partnership
SE3632SW-DOther aircraft modifications
Installation of induction hose clamps.
FAA holder: RAM Aircraft Limited Partnership
SE09104SC-DEngine and powerplant
Modify Teledyne Continental TSIO-520-NB engine. Maximum continuous power is 335 hp at 2700 rpm and 38.0 inches Hg manifold pressure. This mod is limited to Teledyne Continental motors model TSIO-520-NB engines modified per STC SE4327SW.
FAA holder: RAM Aircraft Limited Partnership
SE09259SC-DOther aircraft modifications
Installation of RAM Aircraft Corporation oil cooler.
FAA holder: RAM Aircraft Limited Partnership
SE09282SC-DEngine and powerplant
Modify engine in accordance with RAM Aircraft Corporation Drawing Number 1892.
FAA holder: RAM Aircraft Limited Partnership
SE09653SC-DFuel systems
Installation of RAM Induction Equalized Fuel Nozzle Set.
FAA holder: RAM Aircraft Limited Partnership
SE4327SW-DOther aircraft modifications
Increase all operations power rating to 325 horse power (HP) at 40 inches of manifold pressure (MP) and 2700 RPM.
FAA holder: RAM Aircraft Limited Partnership
SE3631SW-DOther aircraft modifications
Cylinder modifications.
FAA holder: RAM Aircraft Limited Partnership
SE5726SW-DFuel systems
Installation of Floscan - 20lb or - 203b fuel flow transducers.
FAA holder: RAM Aircraft Limited Partnership
SE2831SW-DOther aircraft modifications
Installation of Bendix S6RN-1251 and S6RN-1255 magnetos.
FAA holder: RAM Aircraft Limited Partnership
SE3714SW-DOther aircraft modifications
Install RAM economy camshaft and modified cylinders.
FAA holder: RAM Aircraft Limited Partnership
SE4651SWOther aircraft modifications
Installation of Slick pressurized magnetos. Also eligible on Teledyne Continental TSIO-520-NB engines modified per STC SE4327SW.
FAA holder: RAM Aircraft Limited Partnership
SE5726SWFuel systems
Installation of Floscan -201b or -203b fuel flow transducers.
FAA holder: RAM Aircraft Limited Partnership
SE2831SWOther aircraft modifications
Bendix S6RN-1251 and S6RN-1255 magnetos.
FAA holder: RAM Aircraft Limited Partnership
SE3632SWOther aircraft modifications
Installation of induction hose clamps.
FAA holder: RAM Aircraft Limited Partnership
SE3683SWElectrical systems
Installation of alternator clutch hub Teledyne part no. 640934 with Teledyne part no. 642056 alternator. This mod has been found to be compatible with STC SE4327SW and SE3714SW.
FAA holder: RAM Aircraft Limited Partnership
SE3714SWOther aircraft modifications
Install RAM economy camshaft and modified cylinders.
FAA holder: RAM Aircraft Limited Partnership
SE4327SWOther aircraft modifications
Increase all operation power rating to 325 horsepower (hp) at 40 inches of manifold pressure (MP) and 2700 RPM.
FAA holder: RAM Aircraft Limited Partnership
SE5455SWOther aircraft modifications
Unpressurized Slick 6220 magnetos.
FAA holder: RAM Aircraft Limited Partnership