STC SA5811SW
FAA DRS lists SA5811SW as Current · Reissued, held by RAM Aircraft Limited Partnership, for Cessna Aircraft 421C. Recorded change: Increase maximum ramp weight to 7610 pounds; maximum takeoff weight to7560 pounds; maximum landing weight is 7200 pounds; decrease zero fuel weight to 6533 pounds; install winglets. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
SA5811SW 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.
Related fuel systems STCs
Installation of extended range fuel tank and relocation of aft pressure bulkhead.
FAA holder: Sierra Industries Inc
Installation of extended range fuselage auxiliary fuel tank.
FAA holder: Sierra Industries Ltd.
Installation of aft fuselage fuel tank fill system.
FAA holder: Sierra Industries Ltd.
FAA record reference
- STC number
- SA5811SW
- Product
- Aircraft · Small Multi-Engine
- Country
- United States
- Application date
- November 8, 1983
- Revision date
- October 8, 2001
- CFR references
- Part 21