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Fuel systems

STC SA01956AT-D

FAA DRS lists SA01956AT-D as Current · Reissued, held by FFC Manufacturing, for Twin Commander Aircraft 680, Twin Commander Aircraft 680-E, and Twin Commander Aircraft 680-F, and 24 more aircraft configurations. Recorded change: Installation of replacement fuel cell assemblies. Snapshot dated June 30, 2026.

FAA-listed holder
FFC Manufacturing
Aircraft configurations
27
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of replacement fuel cell assemblies.

SA01956AT-D 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, Twin Commander Aircraft 680-E, and Twin Commander Aircraft 680-F, and 24 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Twin Commander Aircraft 6802A4Twin Commander Aircraft 680-E2A4Twin Commander Aircraft 680-F2A4Twin Commander Aircraft 680-FL2A4Twin Commander Aircraft 680-FL(P)2A4Twin Commander Aircraft 680-F(P)2A4Twin Commander Aircraft 680-T2A4Twin Commander Aircraft 680-V2A4Twin Commander Aircraft 680-W2A4Twin Commander Aircraft 6812A4Twin Commander Aircraft 6852A4Twin Commander Aircraft 6902A4Twin Commander Aircraft 690C2A4Twin Commander Aircraft 690D2A4Twin Commander Aircraft 6952A4Twin Commander Aircraft 695A2A4Twin Commander Aircraft 695B2A4Twin Commander Aircraft 7202A4Twin Commander Aircraft 5006A1
Twin CommanderAircraft 500-A6A1
Twin Commander Aircraft 500-B6A1Twin Commander Aircraft 500-S6A1Twin Commander Aircraft 500-U6A1Twin Commander Aircraft 5206A1Twin Commander Aircraft 5606A1Twin Commander Aircraft 560-A6A1Twin Commander Aircraft 560-E6A1

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Twin Commander Aircraft 680 and Twin Commander Aircraft 680-E, and 25 more aircraft configurations model, serial range, and configuration?
  2. 02Which tanks, plumbing, usable-fuel assumptions, and inspections 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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