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Avionics

STC SA09635AC

FAA DRS lists SA09635AC as Current · Issued, held by S-TEC Corporation, for Cessna Aircraft 421C. Recorded change: Installation of S-TEC Meggitt Engine Instrument Display System (EIDS) in accordance with Master Data List 921230, Revision 7, dated September 17, 2004, or later FAA approved revision for Cessna 425. FAA approved Airplane Flight Manual Supplement No. 892137, dated September 20, 2004, or later FAA approved revision is required for Cessna 425 with S-TEC Meggitt EIDS. Snapshot dated June 30, 2026.

FAA-listed holder
S-TEC Corporation
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of S-TEC Meggitt Engine Instrument Display System (EIDS) in accordance with Master Data List 921230, Revision 7, dated September 17, 2004, or later FAA approved revision for Cessna 425. FAA approved Airplane Flight Manual Supplement No. 892137, dated September 20, 2004, or later FAA approved revision is required for Cessna 425 with S-TEC Meggitt EIDS.

SA09635AC 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: Cessna Aircraft 421C. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 421CA7CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 421C model, serial range, and configuration?
  2. 02Which part numbers, software versions, interfaces, and manual changes 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?

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