Skip to content
Other aircraft modifications

STC SH1705SO

FAA DRS lists SH1705SO as Current · Reissued, held by Enviro Systems Inc., for Westland Helicopters Westland 30 Series 100. Recorded change: Installation of Freon Air Conditioning System in accordance with Installation Drawing List Report No. DL-30-1, Revision B, dated November 5, 1984 and Manufacturing Drawing List, Report No. DL-30-2, Revision A, dated November 19, 1984, or later FAA approved revisions. 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 Freon Air Conditioning System in accordance with Installation Drawing List Report No. DL-30-1, Revision B, dated November 5, 1984 and Manufacturing Drawing List, Report No. DL-30-2, Revision A, dated November 19, 1984, or later FAA approved revisions.

SH1705SO 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: Westland Helicopters Westland 30 Series 100. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Westland Helicopters Westland 30 Series 100H12EU

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Westland Helicopters Westland 30 Series 100 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?

Related other aircraft modifications STCs