SE94WEOther aircraft modifications
Installation of oil fitting(AN-823-5D) in rocker box cover.
FAA holder: Airwolf Filter Corporation
Aircraft STC directory
Continental Motors IO-520-B STCs
The Jun 30, 2026 FAA DRS snapshot contains 7 selected supplemental type certificates with status Current whose public applicability data names the Continental Motors IO-520-B. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
7
listed Current at snapshot
6
holder directories
3
modification categories
Jul 16, 2020
latest recorded revision
Modification demand surface
Other aircraft modifications4
Engine and powerplant2
Fuel systems1
Recently revised IO-520-B STCs
Showing the 7 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SE5785NMOther aircraft modifications
Replacement of Teledyne Continental original camshaft with P/N 32122-2.
FAA holder: B & B Aviation LLC
SE70RMOther aircraft modifications
Installation of compressor bracket.
FAA holder: Air Comm Corporation
SE8677SWEngine and powerplant
Installation of Garrett/Airesearch Model TE0659 turbocharger.
FAA holder: Western Skyways, Inc.
SE1186SWOther aircraft modifications
Regrooving of pistons P/N 631475 or P/N 632585.
FAA holder: Continental Motors, Inc.
SE09979SCEngine and powerplant
Modification of Teledyne Continental Motors IO-520-B, IO-520-BA, or IO-520-BB engine to an Ultimate Engines IO-550-B/UE engine.
FAA holder: General Aviation Modifications, Inc.
SE01791LAFuel systems
Conversion of the subject engines to incorporate modification of crankcase, replacing crankshaft assembly, main bearings, rod assembly, piston, fuel system, and fuel system adjustment.
FAA holder: COLORADO AIR PARTS