SA497GLLanding gear and brakes
Install Aircraft Wheel and Brake conversion kit 199-80 (MIL-H-5606 system).
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
Aircraft STC directory
Twin Commander Aircraft 680FL(P) STCs
The Jun 30, 2026 FAA DRS snapshot contains 5 selected supplemental type certificates with status Current whose public applicability data names the Twin Commander Aircraft 680FL(P). Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
5
listed Current at snapshot
4
holder directories
4
modification categories
Sep 19, 2022
latest recorded revision
Modification demand surface
Landing gear and brakes2
Fuel systems1
Flight controls1
Other aircraft modifications1
Recently revised 680FL(P) STCs
Showing the 5 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA1458GLLanding gear and brakes
Installation of a Cleveland nose wheel.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
SA8597SWFuel systems
Installation of P/N DF062-507, upper center fuel tank bladder cells as a replacement for original bladder P/N 5630062-507.
FAA holder: Floats & Fuel Cells
SA473SWFlight controls
Installation of Collins AP-103E/FD-108 automatic flight control system.
FAA holder: Rockwell Collins Inc