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Engine and powerplant

STC SE01954SE (PAGE 3)

FAA DRS lists SE01954SE (PAGE 3) as Current · Amended, held by Ly-Con Rebuilding Company, for Lycoming Engines AEIO-540-D4A5, Lycoming Engines AEIO-540-D4B5, and Lycoming Engines AEIO-540-D4C5, and 37 more aircraft configurations. Recorded change: Installation of engine crankcase seal. Snapshot dated June 30, 2026.

FAA-listed holder
Ly-Con Rebuilding Company
Aircraft configurations
40
FAA revision date
FAA status
Current · Amended

Recorded modification

What the FAA record covers

SE01954SE (PAGE 3) 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: Lycoming Engines AEIO-540-D4A5, Lycoming Engines AEIO-540-D4B5, and Lycoming Engines AEIO-540-D4C5, and 37 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Lycoming Engines AEIO-540-D4A51E4Lycoming Engines AEIO-540-D4B51E4Lycoming Engines AEIO-540-D4C51E4Lycoming Engines AEIO-540-D4D51E4Lycoming Engines AEIO-540-L1B51E4Lycoming Engines AEIO-540-L1B5D1E4Lycoming Engines AEIO-540-L1D51E4
Lycoming Engines HIO 540-A1A1E4
Lycoming Engines IO-540-A1A51E4
Lycoming Engines IO-540-AA1A51E4
Lycoming Engines IO-540-AA1B51E4
Lycoming Engines IO-540-AB1A51E4
Lycoming Engines IO-540-AC1A51E4
Lycoming Engines IO-540-AE1A51E4
Lycoming Engines IO-540-B1A51E4Lycoming Engines IO-540-B1B51E4Lycoming Engines IO-540-B1C51E4Lycoming Engines IO-540-C1B51E4Lycoming Engines IO-540-C1C51E4Lycoming Engines IO-540-C2C1E4Lycoming Engines IO-540-C4B51E4Lycoming Engines IO-540-C4B5D1E4Lycoming Engines IO-540-C4C51E4Lycoming Engines IO-540-C4D51E4Lycoming Engines IO-540-C4D5D1E4Lycoming Engines IO-540-D4A51E4Lycoming Engines IO-540-D4B51E4Lycoming Engines IO-540-D4C51E4Lycoming Engines IO-540-E1A51E4Lycoming Engines IO-540-E1B51E4Lycoming Engines IO-540-E1C51E4Lycoming Engines IO-540-G1A51E4Lycoming Engines IO-540-G1B51E4Lycoming Engines IO-540-G1C51E4Lycoming Engines IO-540-G1D51E4Lycoming Engines IO-540-G1E51E4Lycoming Engines IO-540-G1F51E4Lycoming Engines IO-540-J4A51E4Lycoming Engines IO-540-K1A51E4
Lycoming Engines IO-540-K1A5D1E4

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Related engine and powerplant STCs

SA03069CHEngine and powerplant

Installation of a Hartzell propeller model (P)HC-C3YF-1RF/F8468-A-6R or (P)HC-C3YF-1RF/8068 onto Raytheon Aircraft Company (Hawker Beechcraft) models 45(YT-34), A45(T-34A), or D45(T-34B) aircraft equipped with a Teledyne Continental Motors IO-520-B, IO-520-BA, IO-520-BB, or IO-550-B engine in accordance with FAA Approved Installation Instructions, APS Document No. APS2011-07, Revision C, dated February 6, 2012, FAA approved March 6, 2012 or later FAA approved revision.

FAA holder: Aviation Products Systems Inc.

View record