SA02268CH (PAGE 6)Other aircraft modifications
Installation of Airwolf Filter Corp. Air Oil Separator.
FAA holder: Airwolf Filter Corporation
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Boeing C54B-DC. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 3 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Airwolf Filter Corporation
FAA holder: Aviation Products Systems Inc.