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Other aircraft modifications

STC ST02400CH

FAA DRS lists ST02400CH as Current · Amended, held by Stevens Aviation Inc., for Learjet 25, Learjet 25A, and Learjet 25B, and 7 more aircraft configurations. Recorded change: Installation of dual Rockwell Collins AHS-1000A Attitude Heading Reference Systems. Snapshot dated June 30, 2026.

FAA-listed holder
Stevens Aviation Inc.
Aircraft configurations
10
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of dual Rockwell Collins AHS-1000A Attitude Heading Reference Systems.

ST02400CH 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.

Learjet 25A10CELearjet 25AA10CELearjet 25BA10CELearjet 25CA10CELearjet 25DA10CELearjet 25FA10CELearjet 35A10CELearjet 35A (C-21A)A10CELearjet 36A10CELearjet 36AA10CE

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 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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