STC SA356NW
FAA DRS lists SA356NW as Current · Amended, held by Pacific Propeller International LLC, for de Havilland (Canada) DHC-2 Mk.I. Recorded change: Installation of EAC-2D30-425/AG- 100-4S propeller on Pratt & Whitney R-985 series engines. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of EAC-2D30-425/AG- 100-4S propeller on Pratt & Whitney R-985 series engines.
SA356NW 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: de Havilland (Canada) DHC-2 Mk.I. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact de Havilland (Canada) DHC-2 Mk.I model, serial range, and configuration?
- 02Which propeller, governor, spinner, engine, and vibration limits apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
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FAA holder: Carson Helicopters, Inc
Installation of a Hartzell model PHC-C3YF-1RF propeller with F8468AK-8R blades in accordance with Mike Stohler s "Installation Instructions" Rev. IR dated September 19, 2003 or later FAA approved revision. Mike Stohler s "Instructions for Continued Airworthiness", Rev. IR dated September 19, 2003 or later FAA approved revision are a required part of this modification.
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Install Northwest Propeller Service Counterweight Thrust Bearings in place of the Hamilton Standard Counterweight Thrust Bearings.
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Installation of abrasion resistant tape on main rotor blade leading edge.
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