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Cabin and interiors

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
Air Comm Corporation
Aircraft configurations
3
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of bleed air cabin heater and windshield defrost system.

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.

Sikorsky Aircraft S-76AH1NESikorsky Aircraft S-76BH1NESikorsky Aircraft S-76CH1NE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Sikorsky Aircraft S-76A and Sikorsky Aircraft S-76B, and 1 more aircraft configuration model, serial range, and configuration?
  2. 02Which layout, materials, flammability evidence, and weight changes 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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