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Aircraft STC directory

Learjet 31 STCs

The Jun 30, 2026 FAA DRS snapshot contains 71 selected supplemental type certificates with status Current whose public applicability data names the Learjet 31. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

71
listed Current at snapshot
35
holder directories
12
modification categories
Sep 15, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications28
Avionics12
Safety and emergency equipment7
Cabin and interiors6
Aircraft connectivity5
Aircraft structures3
Electrical systems3
Cargo and special mission2
Engine and powerplant2
Landing gear and brakes1
Fuel systems1
Flight controls1

Recorded holders

Learjet Inc.12Butler National Corporation4Avcon Industries Inc3Global Aviation Tech LLC3LifePort LLC3Amtech Aeronautical Limited3Duncan Aviation Inc3West Star Aviation3Symetric Industries, DBA Extant Aerospace2Lee Aerospace Inc.2Peregrine2Global Aviation Technologies2DC Aerospace LLC2AeroMech Incorporated2Chippewa Aerospace, Inc.1Raisbeck Engineering Inc.1Heads Up Technologies Inc.1Summit Aviation Inc.1The NORDAM Group LLC1Spectrum Aeromed LLC dba Spectrum Aeromed1

Recently revised 31 STCs

Showing the 71 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

ST02995NYCabin and interiors

Installation of 60 Hz Inverter and Miscellaneous Cabin Interior Items in accordance with Bombardier Aerospace Master Document List Number BAS31010033, Revision NC, dated September 12, 2007 or later Transport Canada approved revision. Refer to drawings listed in 350VA 60 Hz Inverter, and Misc Cabin Interior Items section of Master Document List Number BAS31010033, Revision NC, dated September 12, 2007 or later Transport Canada approved revision for additional installation requirements.

FAA holder: Amtech Aeronautical Limited

View record