SA1604SOAircraft structures
Installation of wing external stores attach points on the lower surface of both wings.
FAA holder: Phoenix Air Group Inc.
Aircraft STC directory
Learjet Learjet 25 STCs
The Jun 30, 2026 FAA DRS snapshot contains 23 selected supplemental type certificates with status Current whose public applicability data names the Learjet Learjet 25. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
23
listed Current at snapshot
13
holder directories
10
modification categories
May 29, 2024
latest recorded revision
Modification demand surface
Other aircraft modifications8
Cargo and special mission3
Aircraft structures2
Avionics2
Cabin and interiors2
Engine and powerplant2
Landing gear and brakes1
Electrical systems1
Flight controls1
Safety and emergency equipment1
Recorded holders
Learjet Inc.5Avcon Industries Inc4LifePort LLC3Phoenix Air Group Inc.1Kaman Corporation Aircraft Wheel and Brake LLC1Spectrum Aeromed LLC dba Spectrum Aeromed1Paul/ Lanna Egan LLC1Bizjet International Sales & Support Inc1Aviation Fabricators Inc1Insight Instrument Corporation1Fargo Jet Center1Addison Express LLC1Steinbach & Associates, Inc.1
Recently revised Learjet 25 STCs
Showing the 23 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA1459GLLanding gear and brakes
Installation of a Cleveland nose wheel.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
SA00120SEElectrical systems
Installation of emergency medical stretcher, oxygen, and electrical systems.
FAA holder: LifePort LLC
ST00365SEOther aircraft modifications
Installation of LifePort, Inc., ServiPlex Unit.
FAA holder: LifePort LLC
ST00728LAOther aircraft modifications
Installation of Infant Transport Module.
FAA holder: LifePort LLC
ST587CHCargo and special mission
Install air ambulance conversion.
FAA holder: Spectrum Aeromed LLC dba Spectrum Aeromed
SA1670CEAircraft structures
Installation of wing external stores attach points on bottom surface of both wings.
FAA holder: Avcon Industries, Inc
SA4590NM-DOther aircraft modifications
Installation of a Universal CVR 30 or cockpit voice recorder.
FAA holder: Learjet Inc.
SA4598NM-DOther aircraft modifications
Installation of aft area equipment rack.
FAA holder: Learjet Inc.
SA2446SWCabin and interiors
Installation of cabin door closing system in accordance with Drawing List No. 34 dated 3/17/80 or later FAA approved revision.
FAA holder: Avcon Industries Inc
SA2715SWEngine and powerplant
Installation of access doors in engine nacelle according to Drawing 375201, Revision A, dated 1/13/78, or later FAA approved revision.
FAA holder: Avcon Industries Inc
SA8930SWEngine and powerplant
Installation of Bizjet International Inlet Anti-ice Heat Blanket.
FAA holder: Bizjet International Sales & Support Inc
SA1132SWOther aircraft modifications
Installation of side facing seats.
FAA holder: Aviation Fabricators Inc
ST01511NYAvionics
Installation of Insight Instrument Corporation (IIC) Heading Gyro 4000.
FAA holder: Insight Instrument Corporation
SA216RMFlight controls
Installation of Collins FCS-80 flight control system. (LEARJET 25 modified per ECR 936).
FAA holder: Learjet Inc
ST09834SCCabin and interiors
Installation of an alternate cabin emergency exit to a position opposite the entry door.
FAA holder: Addison Express LLC
SA2234CESafety and emergency equipment
Installation of a RH forward emergency exit.
FAA holder: Avcon Industries Inc
ST09568SCOther aircraft modifications
Modification of existing refrigerant R12 air conditioning systems to convert them into refrigerant R134a systems on the aircraft identified above.
FAA holder: Steinbach & Associates, Inc.