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Safety and emergency equipment

STC ST01551CH-D

FAA DRS lists ST01551CH-D as Current · Issued, held by ElectroSonics, for Cessna Aircraft 500, Cessna Aircraft S550, and Cessna Aircraft 550. Recorded change: Installation of a Honeywell/AlliedSignal Mark VIII Enhanced Ground Proximity Warning System. Snapshot dated June 30, 2026.

FAA-listed holder
ElectroSonics
Aircraft configurations
3
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a Honeywell/AlliedSignal Mark VIII Enhanced Ground Proximity Warning System.

ST01551CH-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: Cessna Aircraft 500, Cessna Aircraft S550, and Cessna Aircraft 550. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 500A22CECessna Aircraft S550A22CECessna Aircraft 550A22CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 500 and Cessna Aircraft S550, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which equipment, inspection intervals, procedures, and limitations 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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