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Other aircraft modifications

STC SA8121SW

FAA DRS lists SA8121SW as Current · 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
ZEE Systems Inc.
Aircraft configurations
3
FAA revision date
FAA status
Current · 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.

Air Tractor AT-502A17SWAir Tractor AT-502AA17SWAir Tractor AT-502BA17SW

Buyer checks

Confirm before sourcing

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