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Other aircraft modifications

STC SA5878SW

FAA DRS lists SA5878SW as Current · Reissued, held by RAM Aircraft Limited Partnership, for Cessna Aircraft 421, Cessna Aircraft 421A, and Cessna Aircraft 421B, and 1 more aircraft configuration. Recorded change: Installation of range-marked EGT, CHT, oil temperature, and pressure gauges. Snapshot dated June 30, 2026.

FAA-listed holder
RAM Aircraft Limited Partnership
Aircraft configurations
4
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of range-marked EGT, CHT, oil temperature, and pressure gauges.

SA5878SW 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 421, Cessna Aircraft 421A, and Cessna Aircraft 421B, and 1 more aircraft configuration. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 421A7CECessna Aircraft 421AA7CECessna Aircraft 421BA7CECessna Aircraft 421CA7CE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 421 and Cessna Aircraft 421A, and 2 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs 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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