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Aircraft structures

STC ST00550DE

FAA DRS lists ST00550DE as Current · Issued, held by SPEC Inc, for Learjet 25. Recorded change: Modification and installation of an optical glass in forward right hand passenger window. Snapshot dated June 30, 2026.

FAA-listed holder
SPEC Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Modification and installation of an optical glass in forward right hand passenger window.

ST00550DE 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. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 25A10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 25 model, serial range, and configuration?
  2. 02Which configuration, loads, materials, inspections, and damage limits 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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