Skip to content

Atlas / STC / SH617NE

FAA · Supplemental Type Certificate

STC SH617NE

Installation of Dual-Bleed Air Heating System. (BO-105C VARIANTS CB-2 CB-2) (BO-105S VARIANTS CBS-2 CBS-4)

Current Reissued and Amended Aircraft Rotorcraft Rev 12/28/1994 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

  • Sec. 111
  • Sec. 113
  • Sec. 115
  • Sec. 117
  • Sec. 119
  • Sec. 120

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