STC SH4057NM
FAA DRS lists SH4057NM as Current · Reissued, held by Air Comm Corporation, for Sikorsky Aircraft S-76A, Sikorsky Aircraft S-76B, and Sikorsky Aircraft S-76C. Recorded change: Installation of bleed air cabin heater and windshield defrost system. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
SH4057NM 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, Sikorsky Aircraft S-76B, and Sikorsky Aircraft S-76C. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related cabin and interiors STCs
Installation of a 6 seat configuration. Limited to only the installation made in Hawker 800XP Serial Number 258354.
FAA holder: Dominion Aviation Services Inc
FAA record reference
- STC number
- SH4057NM
- Product
- Aircraft · Rotorcraft
- Country
- United States
- Application date
- September 5, 1989
- Revision date
- November 24, 2014
- CFR references
- Part 21, Part 29