STC SE8707SW
FAA DRS lists SE8707SW as Current · Issued, held by Shauck Dr Maxwell E Jr, for Textron Lycoming AVCO O-235-F2A, Textron Lycoming AVCO O-235-E2A, and Textron Lycoming AVCO O-235-M3C, and 27 more aircraft configurations. Recorded change: Alteration of Lycoming O-235 engine to allow use of ethanol fuel. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Alteration of Lycoming O-235 engine to allow use of ethanol fuel.
SE8707SW 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: Textron Lycoming AVCO O-235-F2A, Textron Lycoming AVCO O-235-E2A, and Textron Lycoming AVCO O-235-M3C, and 27 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Textron Lycoming AVCO O-235-F2A and Textron Lycoming AVCO O-235-E2A, and 28 more aircraft configurations model, serial range, and configuration?
- 02Which powerplant configuration, limits, instruments, and maintenance data apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
Related engine and powerplant STCs
Modification of the engine exhaust system.
FAA holder: Rooke Corporation dba Aviation Equipment
Installation of a Honeywell TPE331-10, -10U, -10UF, -10UG, -10UGR, -10UR engine in combination with Hartzell Propeller Model HC-B4TN-5NL/LT10890N, or HC-B4TN-5PL/LT10890N, or Honeywell TPE331-11U or -11UA engine in combination with a Hartzell HC-B5MP-5BL/LM11692N propeller.
FAA holder: Turbine Dromaders LLC
Installation of Beryl D Shannon Aviation Specialties, Inc., Fiberglass Air Scoops (Inlet and Exit) in accordance with DLB 1500 dated June 6, 1974, or later FAA approved revision for the following models: T. C. A-777: Models A35 through C35, 35 and 35 R T. C. 3A15: Models H35 through V35.
FAA holder: D'Shannon Products Ltd.
Installation of Pratt & Whitney Canada PT6A-34 or PT6A-35 Turboprop Engine and Hartzell HC-B3TN-3(D)(Y)/T10282(N)(B,K)+4 propeller in accordance with Viking Air Limited Master Document Index VT3MK20000 Issue 3, dated Feb. 1, 2011, Transport Canada approved Feb. 3, 2011, or later Transport Canada approved revisions.
FAA holder: Viking Air Limited