STC ST04186AT

Incorporation of P3A Airworthiness Limitation Section for aircraft operated in Restricted Category for the special mission of aerial dispensing of liquids

Historical Issued Aircraft Large Airplane Rev 12/02/2014 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 (2)

T00006LA Aero Union Corporation · P3A
A32NM USDA Forest Service · P-3A

Certification basis — 14 CFR

Part 21
Part 25

Specific sections

Sec. 111
Sec. 113
Sec. 115
Sec. 117
Sec. 119
Sec. 120
§ 21.47
§ 21.120
§ 25.571
§ 25.1529

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