SA39CHLanding gear and brakes
Installation of an Amphibian Landing Gear Position Advisory System/Laser Gear Advisory System.
FAA holder: Wipaire Inc.
Aircraft STC directory
Grumman American Aviation G-21A (Army OA-9; Navy JRF-1; -2; -3; -4; -5; and -6B) STCs
The Jun 30, 2026 FAA DRS snapshot contains 5 selected supplemental type certificates with status Current whose public applicability data names the Grumman American Aviation G-21A (Army OA-9; Navy JRF-1; -2; -3; -4; -5; and -6B). 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
3
holder directories
4
modification categories
Oct 23, 2024
latest recorded revision
Modification demand surface
Other aircraft modifications2
Landing gear and brakes1
Aircraft connectivity1
Aircraft structures1
Recently revised G-21A (Army OA-9; Navy JRF-1; -2; -3; -4; -5; and -6B) 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
SA00346SEOther aircraft modifications
Installation of Cleveland wheels and a modified Cleveland braking system per Cleveland Wheels & Brakes Drawing 50-83, Revision B, sketches labeled Drawing #1 - #4, and photographs dated may 7, 1996.
FAA holder: CAS AeroSolutions LLC
SA02018SE-D (PAGE 1)Aircraft connectivity
Provisions installation of Garmin GPS/XM Antennas in accordance with FAA Approved Model List (AML) SA02018SE-D, dated January 4, 2011, or later FAA approved revision, and FAA Approved GPS/XM Antenna STC Master Drawing List, Document No.: 005-00638-01, Revision 1 , approved on January 4, 2011, or later FAA approved revision.
FAA holder: Garmin International Inc
SA4-1467Other aircraft modifications
Installation of retractable tip floats.
FAA holder: Atlantic Coast Sea Planes LLC