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Other aircraft modifications

STC SH4680SW

FAA DRS lists SH4680SW as Current · Reissued, held by Enviro Systems Inc., for Sikorsky Aircraft S-76A. Recorded change: Installation of Freon air conditioning system in accordance with Drawing List Report No. DL-5, Revision C, dated April 1, 1983, 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

SH4680SW 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: Sikorsky Aircraft S-76A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sikorsky Aircraft S-76AH1NE

Buyer checks

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