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Engine and powerplant

STC SA09879AC

FAA DRS lists SA09879AC as Current · Issued, held by James A. Ridpath, Jr., for Sierra Hotel Aero Navion A (Army L-17B and L-17C). Recorded change: Installation of the Continental Motors IO-520-D engine and a Hartzell PHC-J3YF-1RF/F8468A-6R propeller. Snapshot dated June 30, 2026.

FAA-listed holder
James A. Ridpath, Jr.
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of the Continental Motors IO-520-D engine and a Hartzell PHC-J3YF-1RF/F8468A-6R propeller.

SA09879AC 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: Sierra Hotel Aero Navion A (Army L-17B and L-17C). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sierra Hotel Aero Navion A (Army L-17B and L-17C)A-782

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Sierra Hotel Aero Navion A (Army L-17B and L-17C) 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?

Related engine and powerplant STCs

SA1003NEEngine and powerplant

Configuration 1: Installation of an Allison 250-B17F Turboprop Engine (450Hp), (TCDS. E10CE) Hartzell HC-B3TF-7A/ T9212NK-2, Constant Speed reversing propeller, and, a 27.7 gallon Auxiliary Fuel Tank in the fuselage aft, baggage compartment. Configuration 2: Installation of a Rolls Royce Corporation, 250-B17F/2 engine (450Hp), (TCDS. E10CE). and Hartzell HCB3TF- 7A/T9212NK-2, Constant Speed reversing propeller.

FAA holder: Griggs Aircraft Refinishing LLC

View record