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Engine and powerplant

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.

FAA-listed holder
Aircraft configurations
40
FAA revision date
FAA status
Current · Amended

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

  1. 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?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?