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Engine and powerplant

STC SH5974NM

FAA DRS lists SH5974NM as Current · Amended, held by Erickson Air Crane Inc. dba Erickson Air-Crane, for Sikorsky Aircraft S-64F. Recorded change: Replacement of existing combustion type cockpit heater with an engine bleed air type heater system. Snapshot dated June 30, 2026.

Aircraft configurations
1
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

Replacement of existing combustion type cockpit heater with an engine bleed air type heater system.

SH5974NM 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-64F. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sikorsky Aircraft S-64FH6EA

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Sikorsky Aircraft S-64F model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data 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?