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Other aircraft modifications

STC SA2439SW

FAA DRS lists SA2439SW as Current · Reissued, held by Signature Flight Support Corporation, for Twin Commander Aircraft 680-T, Twin Commander Aircraft 680-V, and Twin Commander Aircraft 680-W, and 4 more aircraft configurations. Recorded change: Installation of 690B dorsal fin and tailcone assembly. Snapshot dated June 30, 2026.

FAA-listed holder
Signature Flight Support Corporation
Aircraft configurations
7
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of 690B dorsal fin and tailcone assembly.

SA2439SW 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: Twin Commander Aircraft 680-T, Twin Commander Aircraft 680-V, and Twin Commander Aircraft 680-W, and 4 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Twin Commander Aircraft 680-T2A4Twin Commander Aircraft 680-V2A4Twin Commander Aircraft 680-W2A4Twin Commander Aircraft 6812A4Twin Commander Aircraft 6852A4Twin Commander Aircraft 6902A4Twin Commander Aircraft 690A2A4

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Twin Commander Aircraft 680-T and Twin Commander Aircraft 680-V, and 5 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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