FAA · Supplemental Type Certificate
STC SR01727SE
Fabrication of Boundary Layer Research (BLR) Dual Tail Boom Strake System
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 (9)
- R00006DE Garlick Helicopters Inc. · OH-58A
- R00006DE Garlick Helicopters Inc. · OH-58A+
- R00006DE Garlick Helicopters Inc. · OH-58C
- R00002LA San Joaquin Helicopters · OH-58A
- R00002LA San Joaquin Helicopters · OH-58A+
- R00002LA San Joaquin Helicopters · OH-58C
- H22NM Arrow Falcon Exporters Inc. · OH-58A
- H22NM Arrow Falcon Exporters Inc. · OH-58A+
- H22NM Arrow Falcon Exporters Inc. · OH-58C
Certification basis — 14 CFR
Specific sections
- Sec. 111
- Sec. 113
- Sec. 115
- Sec. 117
- Sec. 119
- Sec. 120
- § 21.47
The STC PDF on drs.faa.gov is the authoritative document — it lists installation instructions, ICA requirements, and any limitations. Open PDF ↗