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Engine and powerplant

STC SA4331SW

FAA DRS lists SA4331SW as Current · Reissued, held by RAM Aircraft Limited Partnership, for Cessna Aircraft 320D, Cessna Aircraft 320E, and Cessna Aircraft 320F, and 14 more aircraft configurations. Recorded change: Revised exhaust system. Snapshot dated June 30, 2026.

FAA-listed holder
RAM Aircraft Limited Partnership
Aircraft configurations
17
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Revised exhaust system.

SA4331SW 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 320D, Cessna Aircraft 320E, and Cessna Aircraft 320F, and 14 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Cessna Aircraft 320D3A25Cessna Aircraft 320E3A25Cessna Aircraft 320F3A25Cessna Aircraft 3403A25Cessna Aircraft 340A3A25Cessna Aircraft 401A7CECessna Aircraft 401AA7CECessna Aircraft 401BA7CECessna Aircraft 402A7CECessna Aircraft 402AA7CECessna Aircraft 402BA7CECessna Aircraft 402CA7CECessna Aircraft 414A7CECessna Aircraft 414AA7CECessna Aircraft T310P3A10Cessna Aircraft T310Q3A10Cessna Aircraft T310R3A10

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Cessna Aircraft 320D and Cessna Aircraft 320E, and 15 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?

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