STC SE01954SE (PAGE 1)
FAA DRS lists SE01954SE (PAGE 1) as Current · Amended, held by Ly-Con Rebuilding Company, for Textron Lycoming AVCO O-340-A1A, Textron Lycoming AVCO O-340-A2A, and Textron Lycoming AVCO O-340-B1A, and 37 more aircraft configurations. Recorded change: Installation of engine crankcase seal. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of engine crankcase seal.
SE01954SE (PAGE 1) 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-340-A1A, Textron Lycoming AVCO O-340-A2A, and Textron Lycoming AVCO O-340-B1A, and 37 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-340-A1A and Textron Lycoming AVCO O-340-A2A, and 38 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
Installation of a Lycoming 10-360-B1E engine, Hartzell HC-C2YK-1BF/F7666A-4Q, and Avcon, Inc. Spinner Assembly No. 67790.
FAA holder: Mr. Brian Reid
Installation of a modified exhaust.
FAA holder: BAE SYSTEMS Information and Electronic Systems Integration Inc.
Installation of a modified exhaust.
FAA holder: BAE SYSTEMS Information and Electronic Systems Integration Inc.
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.