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Aircraft structures

STC ST02841AT

FAA DRS lists ST02841AT as Current · Issued, held by Kruse Aerospace Corporation, for Learjet 35A (C-21A). Recorded change: Installation of a lower pressure bulkhead penetration at FS 346.6 (Frame 15) and structural reinforcement in accordance with Kruse Aerospace Corporation (KAC) Drawing No. 200402, dated April 7, 2004, and DCN A1, dated April 17, 2004, or later FAA approved revision. Snapshot dated June 30, 2026.

FAA-listed holder
Kruse Aerospace Corporation
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a lower pressure bulkhead penetration at FS 346.6 (Frame 15) and structural reinforcement in accordance with Kruse Aerospace Corporation (KAC) Drawing No. 200402, dated April 7, 2004, and DCN A1, dated April 17, 2004, or later FAA approved revision.

ST02841AT 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 35A (C-21A). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Learjet 35A (C-21A)A10CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Learjet 35A (C-21A) 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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