Installation of a Boom Beam bulb, starter, and ballast.
FAA holder: Whelen Aerospace Technologies
Aircraft STC directory
Maule Aerospace Technology M-4C STCs
The cited FAA DRS record snapshots contain 21 selected supplemental type certificates with status Current whose public applicability data names the Maule Aerospace Technology M-4C. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
21
listed Current at snapshot
17
holder directories
6
modification categories
Jul 27, 2026
latest recorded revision
Modification demand surface
Recorded holders
Whelen Aerospace Technologies1Lanitz-Prena Folien Factory GmbH1Airframes Alaska LLC1AMSAFE Inc.1Brittain Industries, Inc1Silveraire LLC1Electronics International Inc.1Northern Airframes LLC1Airglas Inc.1Rosen Sunvisor Systems LLC1M-20 Oil Separators LLC1Insight Instrument Corporation1Electronics International1Quint Nicholas M1Aerospace Logic Inc.1Aircraft Components Inc1Aero Ski Manufacturing Co Inc1
Recently revised M-4C STCs
Showing the 21 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
Installation of a wing Strut Tiedown Kit No. SFF-MSTD.
FAA holder: Short Final Fabrication LLC
Installation and maintenance of Oratex 6000 Covering and Coating System.
FAA holder: Lanitz-Prena Folien Factory GmbH
Fabrication and installation of Lift Struts.
FAA holder: Airframes Alaska LLC
Installation of an auto lean system.
FAA holder: Flight Enhancements LLC
Installation of Brittain Industries Model BSS Flight Control System.
FAA holder: Brittain Industries, Inc
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C.
FAA holder: Electronics International Inc.
Installation of the Alaskan Bushwheel, Inc. Extended Heavy Duty Main Landing Gear.
FAA holder: Northern Airframes LLC
The manufacture of a Sunvisor System.
FAA holder: Rosen Sunvisor Systems LLC
Installation of Custom Fiberglass Molding Skis, Model 3000,.
FAA holder: Custom Fiberglass Molding Inc.
Installation of Graphic Engine Monitors (GEM) Models GEM-610 and GEMINI 1200.
FAA holder: Insight Instrument Corporation
Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.
FAA holder: Electronics International
View record
Installation of a voice alert system.
FAA holder: Aircraft Components Inc
Installation of Model R2800 retractable skis.
FAA holder: Aero Ski Manufacturing Co Inc