STC SA00490LA

Installation of winglets.

Current Reissued Aircraft Single-Engine Rev 10/03/2014 View PDF on drs.faa.gov ↗

What is an STC?

A Supplemental Type Certificate authorizes a major modification or alteration to an FAA-certificated aircraft. STCs are how operators legally install new avionics, change fuel systems, add floats, swap engines, etc. — every change beyond a minor modification needs one.

Applicable aircraft (10)

A17SW Air Tractor Inc. · AT-401
A17SW Air Tractor Inc. · AT-401A
A17SW Air Tractor Inc. · AT-401B
A17SW Air Tractor Inc. · AT-402
A17SW Air Tractor Inc. · AT-402A
A17SW Air Tractor Inc. · AT-402B
A17SW Air Tractor Inc. · AT-501
A17SW Air Tractor Inc. · AT-502
A17SW Air Tractor Inc. · AT-502A
A17SW Air Tractor Inc. · AT-502B

Certification basis — 14 CFR

Part 21
Part 23

Specific sections

Sec. 111
Sec. 113
Sec. 115
Sec. 117
Sec. 119
Sec. 120
§ 21.25
§ 21.47

The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗