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Other aircraft modifications

STC SA4-1467

FAA DRS lists SA4-1467 as Current · Amended, held by Atlantic Coast Sea Planes LLC, for Grumman American Aviation G-21 and Grumman American Aviation G-21A (Army OA-9; Navy JRF-1; -2; -3; -4; -5; and -6B). Recorded change: Installation of retractable tip floats. Snapshot dated June 30, 2026.

FAA-listed holder
Atlantic Coast Sea Planes LLC
Aircraft configurations
2
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

SA4-1467 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-21 and Grumman American Aviation G-21A (Army OA-9; Navy JRF-1; -2; -3; -4; -5; and -6B). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Grumman American Aviation G-21TC 654Grumman American Aviation G-21A (Army OA-9; Navy JRF-1; -2; -3; -4; -5; and -6B)TC 654

Buyer checks

Confirm before sourcing

Related other aircraft modifications STCs

ST02931NYOther aircraft modifications

Installation of Two 16G Side Facing Divans, in accordance with ACS-NAI Ltd. Modification Data Summary Number G471000, Revision NC dated August 6, 2010 or later Transport Canada approved revision. Refer to drawings listed in Compatibility Data section of Modification Data Summary Number G471000, Revision NC dated August 6, 2010 or later Transport Canada approved revision for additional installation requirements.

FAA holder: ACS-NAI Limited

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