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Propellers

STC SR025756NY-D

FAA DRS lists SR025756NY-D as Current · Issued, held by Keystone Helicopter Corp., for Sikorsky Aircraft S-76A, Sikorsky Aircraft S-76B, and Sikorsky Aircraft S-76C. Recorded change: Installation of a Main Rotor Blade Recognition Light. Snapshot dated June 30, 2026.

FAA-listed holder
Keystone Helicopter Corp.
Aircraft configurations
3
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of a Main Rotor Blade Recognition Light.

SR025756NY-D 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 propeller, governor, spinner, engine, and vibration limits 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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