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Other aircraft modifications

STC ST03946AT

FAA DRS lists ST03946AT as Current · Issued, held by Stevens Aviation Inc., for Cessna Aircraft 550. Recorded change: Installation of the Advance Digital Audio Management System on the Cessna Model 550, Citation II Aircraft. Snapshot dated June 30, 2026.

FAA-listed holder
Stevens Aviation Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of the Advance Digital Audio Management System on the Cessna Model 550, Citation II Aircraft.

ST03946AT 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: Cessna Aircraft 550. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 550A22CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 550 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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