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Avionics

STC SA01815LA

FAA DRS lists SA01815LA as Current · Reissued, held by Sandel Avionics LLC, for Cessna Aircraft 421C. Recorded change: Installation of Sandel Avionics SN3500 Electronic Horizontal Situation Indicator (EHSI). Snapshot dated June 30, 2026.

FAA-listed holder
Sandel Avionics LLC
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Sandel Avionics SN3500 Electronic Horizontal Situation Indicator (EHSI).

SA01815LA 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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