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Other aircraft modifications

STC SH593EA

FAA DRS lists SH593EA as Current · Surrendered, held by Garrett Aviation Services, for Sikorsky Aircraft S-61N. Recorded change: Installation of Sperry C14A gyrosyn compass system.Descriptive data pertaining to this design change are considered inadequate for duplication in other products. This approval is limited to only the installation made in Sikorsky, S61N, Serial No 61424. Snapshot dated June 30, 2026.

FAA-listed holder
Garrett Aviation Services
Aircraft configurations
1
FAA revision date
FAA status
Current · Surrendered

Recorded modification

What the FAA record covers

Installation of Sperry C14A gyrosyn compass system.Descriptive data pertaining to this design change are considered inadequate for duplication in other products. This approval is limited to only the installation made in Sikorsky, S61N, Serial No 61424.

SH593EA 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-61N. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sikorsky Aircraft S-61N1H15

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Sikorsky Aircraft S-61N 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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