Install Hoskins Twilighter MK III Supplementary lighting system with Model E, F or P wing tip and Model C tail lights.
FAA holder: BF Goodrich Aerospace
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 12 selected supplemental type certificates with status Current whose public applicability data names the Lockheed Aircraft Lockheed 18. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 12 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: BF Goodrich Aerospace
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation
FAA holder: Signature Flight Support Corporation