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Other aircraft modifications

STC SA09548AC-D

FAA DRS lists SA09548AC-D as Current · Issued, held by S-TEC Corporation, for Twin Commander Aircraft 690C, Twin Commander Aircraft 690D, and Twin Commander Aircraft 695, and 1 more aircraft configuration. Recorded change: Installation of S-TEC/Chelton CA370S Air Data Attitude Heading Reference System (ADAHRS). Snapshot dated June 30, 2026.

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

Recorded modification

What the FAA record covers

SA09548AC-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: Twin Commander Aircraft 690C, Twin Commander Aircraft 690D, and Twin Commander Aircraft 695, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Twin Commander Aircraft 690C2A4Twin Commander Aircraft 690D2A4Twin Commander Aircraft 6952A4Twin Commander Aircraft 695A2A4

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