SA02033AT (PAGE 6)Engine and powerplant
Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW).
FAA holder: M-20 Oil Separators LLC
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 5 selected supplemental type certificates with status Current whose public applicability data names the Ayres 600 S-2D. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 5 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: M-20 Oil Separators LLC
FAA holder: Scale Modelbuilders Inc.
FAA holder: Horizon Instruments Inc
FAA holder: R-S Sales Inc.
FAA holder: Weath-Aero Co., Inc.