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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.

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FAA-listed holder
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

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.

FAA record reference

STC number
SH2720SO
Product
Aircraft · Rotorcraft
Country
United States
Application date
February 14, 1989
Revision date
June 20, 2003
CFR references
Part 21