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Other aircraft modifications

STC ST02121CH

FAA DRS lists ST02121CH as Current · Reissued, held by Flight Test Aerospace, Inc, for Learjet 24, Learjet 24A, and Learjet 24B-A, and 13 more aircraft configurations. Recorded change: Certification for Reduced Vertical Separation Minimum (RVSM) operational capability and installation of dual Honeywell AM-250 Altimeters and Rosemount model 0856NA Pitot-Static Probes. Snapshot dated June 30, 2026.

FAA-listed holder
Flight Test Aerospace, Inc
Aircraft configurations
16
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Certification for Reduced Vertical Separation Minimum (RVSM) operational capability and installation of dual Honeywell AM-250 Altimeters and Rosemount model 0856NA Pitot-Static Probes.

ST02121CH 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 24, Learjet 24A, and Learjet 24B-A, and 13 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 24A10CELearjet 24AA10CELearjet 24B-AA10CELearjet 24BA10CELearjet 24CA10CELearjet 24D-AA10CELearjet 24DA10CELearjet 24EA10CELearjet 24F-AA10CELearjet 24FA10CELearjet 25A10CELearjet 25AA10CELearjet 25BA10CELearjet 25CA10CELearjet 25DA10CELearjet 25FA10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 24 and Learjet 24A, and 14 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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