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Aircraft STC directory

Learjet Learjet 31A STCs

The Jun 30, 2026 FAA DRS snapshot contains 37 selected supplemental type certificates with status Current whose public applicability data names the Learjet Learjet 31A. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

37
listed Current at snapshot
13
holder directories
6
modification categories
May 10, 2019
latest recorded revision

Modification demand surface

Other aircraft modifications14
Avionics11
Safety and emergency equipment4
Cargo and special mission3
Engine and powerplant3
Cabin and interiors2

Recorded holders

Learjet Inc.15Duncan Aviation Inc7LifePort LLC2Spectrum Aeromed LLC dba Spectrum Aeromed2Honeywell International Inc2Garrett Aviation Services2Avcon Industries Inc1Pro Star Aviation, LLC1Paul/ Lanna Egan LLC1Aviation Fabricators Inc1East Coast Avionics1Fargo Jet Center1Steinbach & Associates, Inc.1

Recently revised Learjet 31A STCs

Showing the 37 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.