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Engine and powerplant

STC SA09189AC

FAA DRS lists SA09189AC as Current · Reissued, held by Riddell Flying Service, Inc., for Air Tractor AT-501 and Air Tractor AT-502. Recorded change: Installation of a Walter M601E-11 turboprop engine and a Avia Hamilton Standard VJ8.510AG propeller . Snapshot dated June 30, 2026.

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FAA-listed holder
Riddell Flying Service, Inc.
Aircraft configurations
2
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

SA09189AC 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: Air Tractor AT-501 and Air Tractor AT-502. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Air Tractor AT-501A17SWAir Tractor AT-502A17SW

Related engine and powerplant STCs

SA493CHEngine and powerplant

Increase in maximum gross weight from 3600 lbs. to 3700 lbs. with installation of Continental I0-550-B engine in accordance with D'Shannon Products Installation Instruction 71-20-00, dated 10/20/88, or later FAA-approved revision; and installation of Cooling Air Baffles in accordance with D'Shannon Products Installation Instruction DSP1M95-2, dated 6/1/95, FAA-approved 6/21/95 or later FAA Approved revisions.

FAA holder: D'Shannon Products Ltd.

View record

FAA record reference

STC number
SA09189AC
Product
Aircraft · Single-Engine
Country
United States
Application date
October 9, 1995
Revision date
August 16, 2000
CFR references
Part 21