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Other aircraft modifications

STC SA09525AC-D

FAA DRS lists SA09525AC-D as Current · Issued, held by S-TEC Corporation, for Boeing AT-6A (SNJ-3), Boeing AT-6B, and Boeing AT-6C (SNJ-4), and 4 more aircraft configurations. Recorded change: Installation of S-TEC System 60 Two Axis and Automatic Flight Guidance System, Model ST-899. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
7
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of S-TEC System 60 Two Axis and Automatic Flight Guidance System, Model ST-899.

SA09525AC-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: Boeing AT-6A (SNJ-3), Boeing AT-6B, and Boeing AT-6C (SNJ-4), and 4 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing AT-6A (SNJ-3)A-2-575Boeing AT-6BA-2-575Boeing AT-6C (SNJ-4)A-2-575Boeing AT-6D (SNJ-5)A-2-575Boeing AT-6F (SNJ-6)A-2-575Boeing SNJ-7A-2-575Boeing T-6GA-2-575

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing AT-6A (SNJ-3) and Boeing AT-6B, 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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