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Other aircraft modifications

STC ST00521WI

FAA DRS lists ST00521WI as Current · Reissued, held by Phoenix Air Group Inc, for Learjet Learjet 35, Learjet Learjet 36, and Learjet Learjet 35A (C-21A), and 1 more aircraft configuration. Recorded change: Installation of Target Towing Package and Carriage of ECM Pods. Snapshot dated June 30, 2026.

FAA-listed holder
Phoenix Air Group Inc
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Target Towing Package and Carriage of ECM Pods.

ST00521WI 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 Learjet 35, Learjet Learjet 36, and Learjet Learjet 35A (C-21A), and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet Learjet 35A10CELearjet Learjet 36A10CELearjet Learjet 35A (C-21A)A10CELearjet Learjet 36AA10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet Learjet 35 and Learjet Learjet 36, and 2 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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