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Avionics

STC SA09402AC-D

FAA DRS lists SA09402AC-D as Current · Amended, held by S-TEC Corporation, for Piper Aircraft PA-46-350P. Recorded change: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance Systems, Model ST-854, with Autotrim System, Yaw Damper System and Flight Director/Steering Horizon. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
1
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 Systems, Model ST-854, with Autotrim System, Yaw Damper System and Flight Director/Steering Horizon.

SA09402AC-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: Piper Aircraft PA-46-350P. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft PA-46-350PA25SO

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Piper Aircraft PA-46-350P model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes 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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