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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

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

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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

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