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Other aircraft modifications

STC SH2720SO

FAA DRS lists SH2720SO as Current · Reissued, held by Enviro Systems Inc., for Boeing Defense & Space Group 234. Recorded change: Installation of Aero Aire Model 234 Environmental Control System (ECS) in accordance with Aero Aire Master Drawing List Document No. A234R002, Revision B, dated March 7, 1990, or later FAA Approved Revision. Snapshot dated June 30, 2026.

FAA-listed holder
Enviro Systems Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Aero Aire Model 234 Environmental Control System (ECS) in accordance with Aero Aire Master Drawing List Document No. A234R002, Revision B, dated March 7, 1990, or later FAA Approved Revision.

SH2720SO 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: Boeing Defense & Space Group 234. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing Defense & Space Group 234H9EA

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing Defense & Space Group 234 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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