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Other aircraft modifications

STC ST01231WI

FAA DRS lists ST01231WI as Current · Issued, held by Duncan Aviation Inc, for Learjet 55. Recorded change: Upgrade of dual Collins ADS-80 Air Data System for RVSM Capability. Data required: (1) Duncan Aviation Document List 031103026, Revision A, dated March 3, 2004; and (2) FAA Approved Flight Manual Supplement 031103030, dated March 3, 2004, or later FAA Approved revisions to (1) or (2). Snapshot dated June 30, 2026.

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

Recorded modification

What the FAA record covers

Upgrade of dual Collins ADS-80 Air Data System for RVSM Capability. Data required: (1) Duncan Aviation Document List 031103026, Revision A, dated March 3, 2004; and (2) FAA Approved Flight Manual Supplement 031103030, dated March 3, 2004, or later FAA Approved revisions to (1) or (2).

ST01231WI 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 55. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 55A10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 55 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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