STC SA8121SW
FAA DRS lists SA8121SW as Current 路 Reissued, held by ZEE Systems Inc., for Air Tractor AT-502, Air Tractor AT-502A, and Air Tractor AT-502B. Recorded change: Installation of freon air conditioner. Snapshot dated June 30, 2026.
FAA-listed holder
Aircraft configurations
3
FAA revision date
FAA status
Current 路 Reissued
Recorded modification
What the FAA record covers
SA8121SW 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: Air Tractor AT-502, Air Tractor AT-502A, and Air Tractor AT-502B. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Related other aircraft modifications STCs
S/N 3501 ONLY: Installation of Cessna 150 seats.
FAA holder: Mee Two Aviation Inc.
S/N 3501 ONLY: Installation of 15x6.00-6 tires.
FAA holder: Mee Two Aviation Inc.
FAA record reference
- STC number
- SA8121SW
- Product
- Aircraft 路 Single-Engine
- Country
- United States
- Application date
- May 16, 1990
- Revision date
- February 14, 2012
- CFR references
- Part 21