Installation of the replacement rate gyro, Butler National Part Number 501-1169-01 MOD A or 501-1169-02 MOD A.
FAA holder: Symetric Industries, DBA Extant Aerospace
Aircraft STC directory
The Jun 30, 2026 FAA DRS snapshot contains 122 selected supplemental type certificates with status Current whose public applicability data names the Learjet 36. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Showing the 100 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
FAA holder: Symetric Industries, DBA Extant Aerospace
FAA holder: Symetric Industries, DBA Extant Aerospace
FAA holder: Symetric Industries, DBA Extant Aerospace
FAA holder: Phoenix Air Group Inc.
FAA holder: Butler National Corporation
FAA holder: Butler National Corporation
FAA holder: Lee Aerospace Inc.
FAA holder: Phoenix Air Group Inc.
FAA holder: Global Aviation Tech LLC
FAA holder: Global Aviation Tech LLC
FAA holder: Heads Up Technologies Inc.
FAA holder: Summit Aviation Inc
FAA holder: Butler National Corporation
FAA holder: Blackhawk Aerospace Technologies Inc.
FAA holder: Blackhawk Aerospace Technologies Inc.
FAA holder: Avcon Industries Inc
FAA holder: Summit Aviation Inc
FAA holder: Butler National Corporation
FAA holder: The NORDAM Group LLC
FAA holder: Spectrum Aeromed LLC dba Spectrum Aeromed
FAA holder: Avcon Industries Inc
FAA holder: Pro Star Aviation, LLC
FAA holder: Avcon Industries Inc
FAA holder: Sikorsky Aircraft Corporation
FAA holder: ELDEC Corporation
FAA holder: International turbine Industries
FAA holder: West Star Aviation Inc
FAA holder: Global Aviation Technologies
FAA holder: Global Aviation Technologies
FAA holder: Global Aviation Tech LLC
FAA holder: Parker Hannifin Fluid Systems Division
FAA holder: Duncan Aviation Inc
FAA holder: Duncan Aviation Inc
FAA holder: DC Aerospace LLC
FAA holder: Avcon Industries Inc
FAA holder: Stevens Aviation Inc.
FAA holder: Stevens Aviation Inc.
FAA holder: Butler National Corporation
FAA holder: Stevens Aviation Inc.
FAA holder: AeroMech Incorporated
FAA holder: Honeywell International Inc
FAA holder: Intermap Technologies
FAA holder: Duncan Aviation Inc
FAA holder: Intermap Technologies
FAA holder: Revue Thommen AG
FAA holder: Landmark Aviation
FAA holder: West Star Aviation
FAA holder: Avionics Design Services Ltd.
FAA holder: Chippewa Aerospace, Inc.