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Other aircraft modifications

STC SA08999AC-D

FAA DRS lists SA08999AC-D as Current · Amended, held by S-TEC Corporation, for Beechcraft 35-33, Beechcraft 35-A33, and Beechcraft 35-B33, and 9 more aircraft configurations. Recorded change: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System,Model ST-583. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
12
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System,Model ST-583.

SA08999AC-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: Beechcraft 35-33, Beechcraft 35-A33, and Beechcraft 35-B33, and 9 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Beechcraft 35-333A15Beechcraft 35-A333A15Beechcraft 35-B333A15Beechcraft 35-C333A15Beechcraft 35-C33A3A15Beechcraft E333A15Beechcraft E33A3A15Beechcraft E33C3A15Beechcraft F333A15Beechcraft F33A3A15Beechcraft F33C3A15Beechcraft G333A15

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Beechcraft 35-33 and Beechcraft 35-A33, and 10 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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