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Aircraft STC directory

Learjet Learjet 31 STCs

The Jun 30, 2026 FAA DRS snapshot contains 25 selected supplemental type certificates with status Current whose public applicability data names the Learjet Learjet 31. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

25
listed Current at snapshot
15
holder directories
6
modification categories
May 10, 2019
latest recorded revision

Modification demand surface

Other aircraft modifications8
Avionics8
Cargo and special mission3
Engine and powerplant3
Safety and emergency equipment2
Cabin and interiors1

Recorded holders

Learjet Inc.6LifePort LLC2Avcon Industries Inc2Spectrum Aeromed LLC dba Spectrum Aeromed2Honeywell International Inc2Garrett Aviation Services2Pro Star Aviation, LLC1Paul/ Lanna Egan LLC1AeroMech Incorporated1Aviation Fabricators Inc1Insight Instrument Corporation1East Coast Avionics1Fargo Jet Center1Duncan Aviation Inc1Steinbach & Associates, Inc.1

Recently revised Learjet 31 STCs

Showing the 25 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.