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Avionics

STC ST00033MC

FAA DRS lists ST00033MC as Current · Reissued, held by Global Aviation Technologies, for Learjet 35A (C-21A). Recorded change: Installation of the Universal Avionics Systems Corporation EFI-890R Electronic Flight Instrument System. Snapshot dated June 30, 2026.

FAA-listed holder
Global Aviation Technologies
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of the Universal Avionics Systems Corporation EFI-890R Electronic Flight Instrument System.

ST00033MC 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: Learjet 35A (C-21A). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 35A (C-21A)A10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 35A (C-21A) model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes 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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