STC SR09643RC

Installation of the L3 AN/AR-154 TACAN System and Sandel SN3500 EHSI System

Historical Issued Aircraft Rotorcraft Rev 04/15/2014 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 (1)

H1CE The Enstrom Helicopter Corporation · 480B

Certification basis — 14 CFR

Part 21
Part 27

Specific sections

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

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