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Other aircraft modifications

STC SA09298AC-D

FAA DRS lists SA09298AC-D as Current · Amended, held by S-TEC Corporation, for Piper Aircraft PA-31-300, Piper Aircraft PA-31-325, and Piper Aircraft PA-31. Recorded change: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-751,. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
3
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-751,.

SA09298AC-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-31-300, Piper Aircraft PA-31-325, and Piper Aircraft PA-31. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft PA-31-300A20SOPiper Aircraft PA-31-325A20SOPiper Aircraft PA-31A20SO

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Piper Aircraft PA-31-300 and Piper Aircraft PA-31-325, and 1 more aircraft configuration 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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