Installation of Sperry SP-40C auto flight control system and SPI-73B Sperry instrumentation system.
FAA holder: Honeywell International Inc
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 10 selected supplemental type certificates with status Current whose public applicability data names the Lockheed Aircraft 1329-23A. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 10 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Honeywell International Inc
FAA holder: Standard Aero
FAA holder: Aerosonic Corporation
FAA holder: PATS Aircraft LLC
FAA holder: PATS Aircraft LLC
FAA holder: PATS Aircraft LLC
FAA holder: Seagull Aircraft Corp.
FAA holder: Learjet Inc
FAA holder: Duncan Aviation, Inc
FAA holder: Duncan Aviation, Inc