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Aircraft structures

STC SA4-1121

FAA DRS lists SA4-1121 as Current · Reissued, held by General Aviation Modifications Inc., for Navion Aircraft Navion B. Recorded change: Increase in allowable gross weight from 2850 to 3100 pounds per STC SA4-915 when equipped with 20 gallon wing-tip tanks (Brittain Aircraft P/N 1000) installed. Snapshot dated June 30, 2026.

FAA-listed holder
General Aviation Modifications Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

SA4-1121 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: Navion Aircraft Navion B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Navion Aircraft Navion BA-782

Buyer checks

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