STC SH4547NM

Installation of a fixture for attachment of rappelling ropes under rear seat in accordance with FAA approved STC Data Package Master Drawing List , MTDC-951, Revision B, dated 10/7/97, and Rotorcraft Flight Manual Supplement for Bell Model 206B/L-1/L-3/L-4 and Model 407 with Bell 206/407 Series Helicopter Rappelling Kit , dated 11/26/97, or later FAA approved revisions.

Current Amended Aircraft Rotorcraft Rev 08/16/2011 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
§ 21.47
§ 21.93

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