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Engine and powerplant

STC SA1-427

FAA DRS lists SA1-427 as Current · Reissued, held by Staggerwing Museum Foundation Inc., for Hawker Beechcraft C-45G, Hawker Beechcraft C-45H, and Hawker Beechcraft D18S, and 2 more aircraft configurations. Recorded change: Pratt & Whitney R-985 engine installation with Simmonds Aero- cessories 580047 fuel injector per STC SE1-391, and takeoff weight increase to 9,800 lbs. and landing weight to 9,400 lbs. per STC SA2-820. Snapshot dated June 30, 2026.

FAA-listed holder
Staggerwing Museum Foundation Inc.
Aircraft configurations
5
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Pratt & Whitney R-985 engine installation with Simmonds Aero- cessories 580047 fuel injector per STC SE1-391, and takeoff weight increase to 9,800 lbs. and landing weight to 9,400 lbs. per STC SA2-820.

SA1-427 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: Hawker Beechcraft C-45G, Hawker Beechcraft C-45H, and Hawker Beechcraft D18S, and 2 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Hawker Beechcraft C-45GA-765Hawker Beechcraft C-45HA-765Hawker Beechcraft D18SA-765Hawker Beechcraft TC-45GA-765Hawker Beechcraft TC-45HA-765

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Hawker Beechcraft C-45G and Hawker Beechcraft C-45H, and 3 more aircraft configurations 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?

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