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Safety and emergency equipment

STC ST01390CH-D

FAA DRS lists ST01390CH-D as Current · Reissued, held by ElectroSonics, for Raytheon Aircraft HS.125 Series 700A and Raytheon Aircraft HS.125 Series 700B. 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
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

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

ST01390CH-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: Raytheon Aircraft HS.125 Series 700A and Raytheon Aircraft HS.125 Series 700B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Raytheon Aircraft HS.125 Series 700AA3EURaytheon Aircraft HS.125 Series 700BA3EU

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Raytheon Aircraft HS.125 Series 700A and Raytheon Aircraft HS.125 Series 700B 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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