STC SA4-677

Recorded modification

What the FAA record covers

SA4-677 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.

Buyer checks

Confirm before sourcing

1. 01Does it cover the exact Grumman American Aviation G-21A and Grumman American Aviation G-21 model, serial range, and configuration?Copy
2. 02Which configuration, loads, materials, inspections, and damage limits apply?Copy
3. 03Who can legally supply the design data, kit, instructions, and ICAs?Copy
4. 04What parts, labor, conformity, and return-to-service work are excluded?Copy

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