Skip to content
Other aircraft modifications

STC SR02057NY

FAA DRS lists SR02057NY as Current · Issued, held by Carson Helicopters, Inc, for Sikorsky Aircraft S-61L, Sikorsky Aircraft S-61N, and Sikorsky Aircraft S-61NM, and 1 more aircraft configuration. Recorded change: Upgrade of the S6135-20600 series main gearbox by replacing input free-wheeling units in accordance with Carson drawing. IFWU INSTL Carson S-61 No. CHI-R-001, no revision, dated 12-15-04 and Carson Installation Instructions Report CHI-R-INSTALL, no revision, dated 12-14-04. Snapshot dated June 30, 2026.

FAA-listed holder
Carson Helicopters, Inc
Aircraft configurations
4
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Upgrade of the S6135-20600 series main gearbox by replacing input free-wheeling units in accordance with Carson drawing. IFWU INSTL Carson S-61 No. CHI-R-001, no revision, dated 12-15-04 and Carson Installation Instructions Report CHI-R-INSTALL, no revision, dated 12-14-04.

SR02057NY 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-61L, Sikorsky Aircraft S-61N, and Sikorsky Aircraft S-61NM, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sikorsky Aircraft S-61L1H15Sikorsky Aircraft S-61N1H15Sikorsky Aircraft S-61NM1H15Sikorsky Aircraft S-61AH2EA

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Sikorsky Aircraft S-61L and Sikorsky Aircraft S-61N, and 2 more aircraft configurations 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