STC SA04430NY

Installation of Standby Instrument

Current Issued Aircraft Small Airplane Rev 12/04/2019 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 (2)

Certification basis — 14 CFR

Specific sections

§ 21.47
Sec. 23.29
§ 21.101
§ 21.115
§ 21.120
Sec. 23.301
Sec. 23.303
Sec. 23.305
Sec. 23.307
Sec. 23.337
Sec. 23.561
Sec. 23.601
Sec. 23.603
Sec. 23.605
Sec. 23.607
Sec. 23.609
Sec. 23.611
Sec. 23.613
Sec. 23.625
Sec. 23.771
Sec. 23.773
Sec. 23.777
Sec. 23.867
Sec. 23.1301
Sec. 23.1306
Sec. 23.1308
Sec. 23.1309
Sec. 23.1311
Sec. 23.1321
Sec. 23.1322

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