Skip to content
Avionics

STC ST02403CH

FAA DRS lists ST02403CH as Current · Reissued, held by Stevens Aviation Inc., for Learjet 25, Learjet 25A, and Learjet 25B, and 7 more aircraft configurations. Recorded change: Installation of a single Universal Avionics UNS-1L Flight Management System or single or dual Universal Avionics UNS-1Lw or UNS-1Fw Flight Management Systems. Snapshot dated June 30, 2026.

FAA-listed holder
Aircraft configurations
10
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of a single Universal Avionics UNS-1L Flight Management System or single or dual Universal Avionics UNS-1Lw or UNS-1Fw Flight Management Systems.

ST02403CH 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 25, Learjet 25A, and Learjet 25B, and 7 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 25 and Learjet 25A, and 8 more aircraft configurations 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?