Aircraft STC directory
Maule Aerospace Technology Bee Dee M-4-220S STCs
The Jun 30, 2026 FAA DRS snapshot contains 7 selected supplemental type certificates with status Current whose public applicability data names the Maule Aerospace Technology Bee Dee M-4-220S. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
7
listed Current at snapshot
7
holder directories
2
modification categories
Apr 3, 2025
latest recorded revision
Modification demand surface
Other aircraft modifications6
Engine and powerplant1
Recently revised Bee Dee M-4-220S STCs
Showing the 7 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
SA1199NWEngine and powerplant
Installation of a Hartzell HC-C2YF-1BF/F8459A-4 to -8, Hartzell 82A4203 spinner, and associated systems on a Franklin 6A-350-C1 engine.
FAA holder: Franklin Aircraft Engines Inc.
SA945GLOther aircraft modifications
Superseded by STC SA01944CH. Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index.
FAA holder: EAA Aviation Foundation
SA00170SEOther aircraft modifications
Installation of vortex generators on the wings and tail surfaces in accordance with Micro AeroDynamics drawings and installation instructions specified on the attached FAA AML No. SA00170SE dated November 12, 1997, or later FAA approved revision. NOTE: If more than five vortex generators are damaged or missing, the aircraft is not airworthy.
FAA holder: Micro AeroDynamics Inc
SA131CHOther aircraft modifications
Installation of Model M2000 and M3000H fixed skis.
FAA holder: Aero Ski Manufacturing Co Inc
SA00066SEOther aircraft modifications
Fabrication of interchangeable float spreader bars.
FAA holder: Aerocet Inc