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Other aircraft modifications

STC ST01990CH

FAA DRS lists ST01990CH as Current · Issued, held by ElectroSonics, for Gulfstream Aerospace G-1159 and Gulfstream Aerospace G-1159B. Recorded change: Installation of a Honeywell AZ-960 Air Data System with Honeywell BA-250 (pilot) altimeters. Snapshot dated June 30, 2026.

FAA-listed holder
ElectroSonics
Aircraft configurations
2
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a Honeywell AZ-960 Air Data System with Honeywell BA-250 (pilot) altimeters.

ST01990CH 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: Gulfstream Aerospace G-1159 and Gulfstream Aerospace G-1159B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Gulfstream Aerospace G-1159A12EAGulfstream Aerospace G-1159BA12EA

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Gulfstream Aerospace G-1159 and Gulfstream Aerospace G-1159B 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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