STC SA4592SW
FAA DRS lists SA4592SW as Current · Reissued, held by RAM Aircraft Limited Partnership, for Cessna Aircraft 421C. Recorded change: Installation of improved engine cooling baffle and improved exhaust system slip joints. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued
Recorded modification
What the FAA record covers
SA4592SW 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.
Buyer checks
Confirm before sourcing
Related engine and powerplant STCs
Modify engine IAW RAM Aircraft Corp Drawing No. 1724. Minimum fuel grade is 100/100LL.
FAA holder: RAM Aircraft Limited Partnership
Installation of a Shadin Company Engine Trend Monitor System.
FAA holder: Shadin Avionics