ST12087CHCabin and interiors
Installation replacement Cabin/Cockpit Handheld Fire Extinguishers.
FAA holder: Avcon Industries Inc.
Aircraft STC directory
Learjet 29 STCs
The Jun 30, 2026 FAA DRS snapshot contains 18 selected supplemental type certificates with status Current whose public applicability data names the Learjet 29. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
18
listed Current at snapshot
11
holder directories
8
modification categories
Sep 15, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications7
Cabin and interiors3
Avionics3
Landing gear and brakes1
Safety and emergency equipment1
Aircraft connectivity1
Cargo and special mission1
Engine and powerplant1
Recently revised 29 STCs
Showing the 18 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
ST02416SEOther aircraft modifications
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
ST02417SEOther aircraft modifications
Installation of the replacement stall warning vertical accelerometer, Butler National Part Number 02904001-101.
FAA holder: Symetric Industries, DBA Extant Aerospace
ST01308WIAvionics
Installation of L-3 Communications Avionics Systems Inc. (Landmark) Terrain Awareness Warning System (TAWS) model TAWS8100.
FAA holder: Acron Aviation Inc.
ST04728NYCabin and interiors
Installation of LAI CoolView Cabin Window.
FAA holder: Lee Aerospace Inc.
ST04575ATOther aircraft modifications
Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering.
FAA holder: Chippewa Aerospace Inc.
SA4999NMOther aircraft modifications
Installation of lifeport patient loading and support system.
FAA holder: LifePort LLC
ST02500SEAvionics
The installation of the Garmin GDL-88 with the Flight Stream 210 to allow ADS-B(In) Flight Information Service Broadcast (FIS-B), independent of the ADS-B(Out) solution compliance.
FAA holder: Butler National Corporation
ST02316LALanding gear and brakes
Installation of a Crane Aerospace & Electronics Tire Sensor Assembly.
FAA holder: ELDEC Corporation
ST01734WISafety and emergency equipment
Installation of an Emergency Pneumatic Reservoir Assembly, EAS P/N 1260001-02.
FAA holder: EAS Corporation
ST03132CHAircraft connectivity
Installation of a single or dual Collins TDR-94/94D Mode S Transponder using existing control head, aircraft wiring, and antenna(s).
FAA holder: Royal Air Inc
SA1489CECargo and special mission
Removal of 24-inch wide executive door and installation of 36-inch wide cargo door per AVCON Drawing List 36000 stamped FAA Approved with a date of May 8, 1979, July 3, 1980, November 15, 2010, or later approved revision for Learjet Models 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A, 36, and 36A.
FAA holder: Avcon Industries Inc
ST01195WIOther aircraft modifications
Installation of Rosemount Pitot/Static Probes, altimeters, and associated equipment in Learjet 20 series aircraft to obtain Reduced Vertical Separation Minimum approval.
FAA holder: Avcon Industries Inc
ST01842SEAvionics
Installation of a Sandel Avionics Horizontal Situation Indicator (HSI) and Attitude Direction Indicator (ADI).
FAA holder: Butler National Corporation
SA30GLEngine and powerplant
Installation of electronic engine synchronizer system.
FAA holder: Ontic Engineering and Manufacturing Inc.
SA1170CECabin and interiors
Stretcher installation in cabin area.
FAA holder: Med-Flite of Midamerica Inc
ST01705NYOther aircraft modifications
Installation must be in accordance with Section 1 of DECA Modification Summary MS02051, Rev 2, dated March 7, 2003.
FAA holder: Logo Tech Manufacturing Inc
SA4628SWOther aircraft modifications
Installation of mission related equipment.
FAA holder: L-3 Communications Integrated Systems LP