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Other aircraft modifications

STC SA09285AC-D

FAA DRS lists SA09285AC-D as Current · Reissued, held by S-TEC Corporation, for Piper Aircraft PA-31, Piper Aircraft PA-31-300, and Piper Aircraft PA-31-325, and 1 more aircraft configuration. Recorded change: Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-727-20/30, according to Bulletin No. 827, Revision 6, dated 1-21-11 and Master Drawing List No. 921029, Revision F, dated 1-21-11 or later FAA Approved revisions of the above data (28 Volt System). Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

SA09285AC-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, Piper Aircraft PA-31-300, and Piper Aircraft PA-31-325, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Piper Aircraft PA-31A20SOPiper Aircraft PA-31-300A20SOPiper Aircraft PA-31-325A20SOPiper Aircraft PA-31-350A20SO

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