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Other aircraft modifications

STC ST301CH

FAA DRS lists ST301CH as Current · Amended, held by ElectroSonics, for Cessna Aircraft 500, Cessna Aircraft 550, and Cessna Aircraft S550, and 1 more aircraft configuration. Recorded change: Installation of an AlliedSignal CAS-67A TCAS II system. Snapshot dated June 30, 2026.

FAA-listed holder
ElectroSonics
Aircraft configurations
4
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of an AlliedSignal CAS-67A TCAS II system.

ST301CH 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 500, Cessna Aircraft 550, and Cessna Aircraft S550, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 500A22CECessna Aircraft 550A22CECessna Aircraft S550A22CECessna Aircraft 560A22CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 500 and Cessna Aircraft 550, and 2 more aircraft configurations 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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