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Engine and powerplant

STC ST02583LA

FAA DRS lists ST02583LA as Current · Amended, held by Alloy Aerospace Inc, for Learjet 24B, Learjet 24D, and Learjet 24F, and 4 more aircraft configurations. Recorded change: Modification of the Engine Exhaust system that installs the Alloy Aerospace, Inc. hush kit on Learjet 20 series aircraft. Snapshot dated June 30, 2026.

FAA-listed holder
Alloy Aerospace Inc
Aircraft configurations
7
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Modification of the Engine Exhaust system that installs the Alloy Aerospace, Inc. hush kit on Learjet 20 series aircraft.

ST02583LA 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 24B, Learjet 24D, and Learjet 24F, and 4 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 24BA10CELearjet 24DA10CELearjet 24FA10CELearjet 25BA10CELearjet 25CA10CELearjet 25DA10CELearjet 25FA10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 24B and Learjet 24D, and 5 more aircraft configurations model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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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