STC SA4-1550
FAA DRS lists SA4-1550 as Current · Amended, held by Atlantic Coast Sea Planes LLC, for Grumman American Aviation G-21A and Grumman American Aviation G-21. Recorded change: Installation of wing leading edge landing lights. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA4-1550 identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Grumman American Aviation G-21A and Grumman American Aviation G-21. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related aircraft structures STCs
Installation of Inspection Covers over the wing front spar.
FAA holder: Ronald S. Piercy dba Rainbow Flying Service
Installation of forward door and aft door bubble type windows.
FAA holder: Tech-Tool Plastics Inc
FAA record reference
- STC number
- SA4-1550
- Product
- Aircraft · Single-Engine
- Country
- United States
- Application date
- March 6, 1961
- Revision date
- March 7, 2008
- CFR references
- Part 21