STC SR01470SE

Fabrication of Boundary Layer Research (BLR) Fast Fin System in accordance with BLR Master Drawing List No. 205-MDL-000, Revision B, dated June 21, 2004 or later Federal Aviation Administration (FAA) approved revision; and installation of the BLR Fast Fin System in accordance with BLR Installation Manual No. 205-IM-1001, Revision A, dated May 22, 2004, or later FAA approved revisions.

Historical Issued Aircraft Rotorcraft Rev 10/08/2004 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 (5)

Certification basis — 14 CFR

Part 21

Specific sections

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

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