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.
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.
Related other aircraft modifications STCs
Reduce number of passenger seats installed from 15 to 8 passengers.
FAA holder: Mountain Flight Service
Limited to installation on serial number 32449 ONLY.
FAA holder: ATA Airlines Inc
FAA record reference
- STC number
- SA09548AC-D
- Product
- Aircraft · Small Multi-Engine
- Country
- United States
- Application date
- June 23, 2008
- Revision date
- August 25, 2008
- CFR references
- Part 21, Part 23