Beechcraft Musketeer / Sierra / Sundowner Supplemental Type Certificates (STCs)

159 STCs approved for the Beechcraft Musketeer / Sierra / Sundowner (A23 Musketeer) family · FAA quick reference

Quick reference only — not a compliance record. This list is for research convenience and may be incomplete or out of date. It is not an airworthiness compliance determination. Always verify against the official FAA record, and check directly with the FAA before relying on it. ADs are mandatory; STCs indicate approval for the type (not installation on a specific airframe); SAIBs are advisory.

Supplemental Type Certificates (STCs) approved for the Beechcraft Musketeer / Sierra / Sundowner type — FAA-approved modifications available for this aircraft family. Approval for the TYPE does not mean a given STC is installed on any individual airframe (that lives in the logbooks/337s).

Document	Title / Subject	Date
SA800EA	Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies — Whelen Aerospace Technologies	2026-06-12
SA00081NY	Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. — Alcor LLC	2025-05-27
SA02738CH (PAGE 6)	Installation of L-3 Communications Avionics Systems — Acron Aviation Inc.	2025-04-01

+ 156 more STCs for the Beechcraft Musketeer / Sierra / Sundowner family.

The complete, searchable Supplemental Type Certificates list — with in-app PDF viewing and a combined download — is part of AeroTell.

See all 159 STCs in the AeroTell app →