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Other aircraft modifications

STC SR01534SE

FAA DRS lists SR01534SE as Current · Amended, held by Croman Corporation, for Sikorsky Aircraft S-61L, Sikorsky Aircraft S-61N, and Sikorsky Aircraft S-61NM. Recorded change: Installation of the transmission input modification to the main gear box. Snapshot dated June 30, 2026.

FAA-listed holder
Croman Corporation
Aircraft configurations
3
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Installation of the transmission input modification to the main gear box.

SR01534SE 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. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sikorsky Aircraft S-61L1H15Sikorsky Aircraft S-61N1H15Sikorsky Aircraft S-61NM1H15

Buyer checks

Confirm before sourcing

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

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